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61. 发明专利

NL171680C 未知
公开(公告)号：NL171680C
公开(公告)日：1983-05-02
申请号：NL7202767
申请日：1972-03-02
申请人： DYNAMIT NOBEL AG
IPC分类号： B01F7/24 , B29B7/74 , B29C44/30 , B29D27/00 , B29G7/02
摘要： 1386347 Moulding foamed sheets; laminates DYNAMIT NOBEL AG 1 March 1972 [2 March 1971 2 Dec 1971] 9636/72 Headings B5A and B5N [Also in Divisions C3 and B1] Phenolic resin foamed sheet is continuously produced by forming a premix of a liquid phenolic foamable resin and a blowing agent; mixing the premix with hardener, uniformly distributing the mixture on to a lower cover layer entering a double-belt press and covering with an upper cover layer as it enters the press and heating as it passes through the press to foam and harden. The cover layers may either be stripped off or left on and accordingly they may be coated or impregnated with adhesive or release agent. The sheet produced may be trimmed, cut into lengths and grooved longitudinally and transversely. The density of the sheets produced increases outwardly from the middle. The apparatus comprises storage vessels and metering pumps 6-9 for the various ingredients, the liquid resin being cooled, 11, and passed to a two-stage premixer 12, also cooled, and thence to a mixer 13 which also receives the hardener and additives. This mixer is divided into upper and lower communicating chambers by either a disc on the mixer shaft (Fig. 4, not shown) or an encircling web on the inner wall of the mixing vessel (Fig. 5, not shown), or both forming a labyrinth seal (Fig. 6, not shown). Hardener is supplied to the lower chamber only, so that hardener resin will not come into contact with the bushing by which the shaft is journalled through the vessel housing. The area of the communicating gap between the two compartments is smaller than that of the resin inlet to the upper compartment so that this compartment is pressurized. A nozzle 23 distributes the mixture on to the lower cover layer 42, this having been folded at the edges through 90 degrees to form upstanding sides. The resin is levelled by roller 22 and the upper cover layer applied, the upstanding edges of the lower cover layer then being folded inward over the upper cover layer, by device 24, to form a seal as the layers pass between the lower belt 27 and upper belt 26, the latter being vertically adjustable by hydraulic rams 28. Rubber beading 25 rotates with the belts and is engaged by rails on the belts to form side wall seals. Heating is by a combination of internally placed heating elements and a forced-draught hot air system (Fig. 3, not shown). The cover layers may be taken off by rolls 29 and 30 as the panel emerges through the belts to pass through cutting and grooving devices 32 to 37 to be stacked 38.

62. 发明专利

YU226280A COMBINED PLATE WITH LOW COMBUSTIBILITY 未知
公开(公告)号：YU226280A
公开(公告)日：1983-04-30
申请号：YU226280
申请日：1980-09-05
申请人： ALUSUISSE
发明人： SEVERUS H
IPC分类号： B32B15/082 , B32B5/18 , B32B15/04 , B32B15/08 , E04B1/94 , B29G7/02 , B32B5/22

63. 发明专利

ES504051A0 未知
公开(公告)号：ES504051A0
公开(公告)日：1983-01-01
申请号：ES504051
申请日：1981-07-17
申请人： SNIA VISCOSA
IPC分类号： B29C39/00 , B29C39/10 , B29C43/02 , B29C44/12 , B29C57/00 , B29C59/00 , B29C67/20 , C08J9/00 , B29G7/02 , C08G63/52
摘要： Process for obtaining cellular materials, based on unsaturated polyester resin optionally containing reinforcing and/or inert fillers, having a density between 0.2 and 1.0 kg/l by moulding under pressure a liquid foam of said resins, characterized by the fact that the liquid foam based on unsaturated polyester resins containing conventional additives, optionally containing an inert and/or reinforcing charge of mineral or organic fibers having a length which is less than 5 mm, preferably less than 3 mm and more preferably less than 1.5 mm, obtained by mechanical introduction of a gas and/or by means of a chemical and/or physical foaming agent, is firstly introduced into an open half-mould optionally containing a further fiber reinforcement, by casting an amount higher than the free volume of the mould, and subsequently said foam is cross-linked.

64. 发明专利

SU785052A1 METHOD OF SHAPING THERMOSETTING PLASTIC ARTICLES 未知
公开(公告)号：SU785052A1
公开(公告)日：1980-12-07
申请号：SU2669486
申请日：1978-10-02
申请人： BABCHENKO BORIS P , RYABOVOL ALBERT A , REDKO VLADIMIR , BURMINOV VLADIMIR V
发明人： BABCHENKO BORIS P , RYABOVOL ALBERT A , REDKO VLADIMIR , BURMINOV VLADIMIR V
IPC分类号： G05D27/00 , B29G7/02

65. 发明专利

AT349742B 未知
公开(公告)号：AT349742B
公开(公告)日：1979-04-25
申请号：AT162372
申请日：1972-02-29
申请人： DYNAMIT NOBEL AG
发明人： BRUENING KLAUS ING , JUENGER HANS DIPL-CHEM DR , PUNGS WOLFGANG DIPL-CHEM DR , RHEINFELD PETER ING , WEISSENFELS FRANZ DIPL-CHEM DR , WIENAND MICHAEL DIPL ING , LOB HEINRICH
IPC分类号： B01F7/24 , B29B7/74 , B29C44/30 , B29G7/02
摘要： 1386347 Moulding foamed sheets; laminates DYNAMIT NOBEL AG 1 March 1972 [2 March 1971 2 Dec 1971] 9636/72 Headings B5A and B5N [Also in Divisions C3 and B1] Phenolic resin foamed sheet is continuously produced by forming a premix of a liquid phenolic foamable resin and a blowing agent; mixing the premix with hardener, uniformly distributing the mixture on to a lower cover layer entering a double-belt press and covering with an upper cover layer as it enters the press and heating as it passes through the press to foam and harden. The cover layers may either be stripped off or left on and accordingly they may be coated or impregnated with adhesive or release agent. The sheet produced may be trimmed, cut into lengths and grooved longitudinally and transversely. The density of the sheets produced increases outwardly from the middle. The apparatus comprises storage vessels and metering pumps 6-9 for the various ingredients, the liquid resin being cooled, 11, and passed to a two-stage premixer 12, also cooled, and thence to a mixer 13 which also receives the hardener and additives. This mixer is divided into upper and lower communicating chambers by either a disc on the mixer shaft (Fig. 4, not shown) or an encircling web on the inner wall of the mixing vessel (Fig. 5, not shown), or both forming a labyrinth seal (Fig. 6, not shown). Hardener is supplied to the lower chamber only, so that hardener resin will not come into contact with the bushing by which the shaft is journalled through the vessel housing. The area of the communicating gap between the two compartments is smaller than that of the resin inlet to the upper compartment so that this compartment is pressurized. A nozzle 23 distributes the mixture on to the lower cover layer 42, this having been folded at the edges through 90 degrees to form upstanding sides. The resin is levelled by roller 22 and the upper cover layer applied, the upstanding edges of the lower cover layer then being folded inward over the upper cover layer, by device 24, to form a seal as the layers pass between the lower belt 27 and upper belt 26, the latter being vertically adjustable by hydraulic rams 28. Rubber beading 25 rotates with the belts and is engaged by rails on the belts to form side wall seals. Heating is by a combination of internally placed heating elements and a forced-draught hot air system (Fig. 3, not shown). The cover layers may be taken off by rolls 29 and 30 as the panel emerges through the belts to pass through cutting and grooving devices 32 to 37 to be stacked 38.

66. 发明专利

HU173094B METHOD AND APPARATUS FOR PRODUCING SANDWICH-TYPE WOUND BODIES MADE OF REINFORCED PLASTIC MATERIAL 未知
公开(公告)号：HU173094B
公开(公告)日：1979-02-28
申请号：HUMU000553
申请日：1976-02-03
申请人： MUANYAGIPARI KUTATO INTEZET
发明人： KECSKEMETHY GEZA , WINDISCH FERENC , BORSOS TAMAS , SZEMENYEI PAL , HEPPES ALADAR
IPC分类号： B29D23/00 , B29G7/02

67. 发明专利

CH605089A5 未知
公开(公告)号：CH605089A5
公开(公告)日：1978-09-29
申请号：CH273272
申请日：1972-02-25
申请人： DYNAMIT NOBEL AG
发明人： BRUENING KLAUS , JUENGER HANS DR , PUNGS WOLFGANG DR , RHEINFELD PETER , WEISSENFELS FRANZ DR , WIENAND MICHAEL , LOB HEINRICH
IPC分类号： B01F7/24 , B29B7/74 , B29C44/30 , B29D27/00 , B29G7/02 , B32B27/42
摘要： 1386347 Moulding foamed sheets; laminates DYNAMIT NOBEL AG 1 March 1972 [2 March 1971 2 Dec 1971] 9636/72 Headings B5A and B5N [Also in Divisions C3 and B1] Phenolic resin foamed sheet is continuously produced by forming a premix of a liquid phenolic foamable resin and a blowing agent; mixing the premix with hardener, uniformly distributing the mixture on to a lower cover layer entering a double-belt press and covering with an upper cover layer as it enters the press and heating as it passes through the press to foam and harden. The cover layers may either be stripped off or left on and accordingly they may be coated or impregnated with adhesive or release agent. The sheet produced may be trimmed, cut into lengths and grooved longitudinally and transversely. The density of the sheets produced increases outwardly from the middle. The apparatus comprises storage vessels and metering pumps 6-9 for the various ingredients, the liquid resin being cooled, 11, and passed to a two-stage premixer 12, also cooled, and thence to a mixer 13 which also receives the hardener and additives. This mixer is divided into upper and lower communicating chambers by either a disc on the mixer shaft (Fig. 4, not shown) or an encircling web on the inner wall of the mixing vessel (Fig. 5, not shown), or both forming a labyrinth seal (Fig. 6, not shown). Hardener is supplied to the lower chamber only, so that hardener resin will not come into contact with the bushing by which the shaft is journalled through the vessel housing. The area of the communicating gap between the two compartments is smaller than that of the resin inlet to the upper compartment so that this compartment is pressurized. A nozzle 23 distributes the mixture on to the lower cover layer 42, this having been folded at the edges through 90 degrees to form upstanding sides. The resin is levelled by roller 22 and the upper cover layer applied, the upstanding edges of the lower cover layer then being folded inward over the upper cover layer, by device 24, to form a seal as the layers pass between the lower belt 27 and upper belt 26, the latter being vertically adjustable by hydraulic rams 28. Rubber beading 25 rotates with the belts and is engaged by rails on the belts to form side wall seals. Heating is by a combination of internally placed heating elements and a forced-draught hot air system (Fig. 3, not shown). The cover layers may be taken off by rolls 29 and 30 as the panel emerges through the belts to pass through cutting and grooving devices 32 to 37 to be stacked 38.

68. 发明专利

ATA162372A 未知
公开(公告)号：ATA162372A
公开(公告)日：1978-09-15
申请号：AT162372
申请日：1972-02-29
申请人： DYNAMIT NOBEL AG
发明人： BRUENING KLAUS ING , JUENGER HANS DIPL-CHEM DR , PUNGS WOLFGANG DIPL-CHEM DR , RHEINFELD PETER ING , WEISSENFELS FRANZ DIPL-CHEM DR , WIENAND MICHAEL DIPL ING , LOB HEINRICH
IPC分类号： B01F7/24 , B29B7/74 , B29C44/30 , B29G7/02
摘要： 1386347 Moulding foamed sheets; laminates DYNAMIT NOBEL AG 1 March 1972 [2 March 1971 2 Dec 1971] 9636/72 Headings B5A and B5N [Also in Divisions C3 and B1] Phenolic resin foamed sheet is continuously produced by forming a premix of a liquid phenolic foamable resin and a blowing agent; mixing the premix with hardener, uniformly distributing the mixture on to a lower cover layer entering a double-belt press and covering with an upper cover layer as it enters the press and heating as it passes through the press to foam and harden. The cover layers may either be stripped off or left on and accordingly they may be coated or impregnated with adhesive or release agent. The sheet produced may be trimmed, cut into lengths and grooved longitudinally and transversely. The density of the sheets produced increases outwardly from the middle. The apparatus comprises storage vessels and metering pumps 6-9 for the various ingredients, the liquid resin being cooled, 11, and passed to a two-stage premixer 12, also cooled, and thence to a mixer 13 which also receives the hardener and additives. This mixer is divided into upper and lower communicating chambers by either a disc on the mixer shaft (Fig. 4, not shown) or an encircling web on the inner wall of the mixing vessel (Fig. 5, not shown), or both forming a labyrinth seal (Fig. 6, not shown). Hardener is supplied to the lower chamber only, so that hardener resin will not come into contact with the bushing by which the shaft is journalled through the vessel housing. The area of the communicating gap between the two compartments is smaller than that of the resin inlet to the upper compartment so that this compartment is pressurized. A nozzle 23 distributes the mixture on to the lower cover layer 42, this having been folded at the edges through 90 degrees to form upstanding sides. The resin is levelled by roller 22 and the upper cover layer applied, the upstanding edges of the lower cover layer then being folded inward over the upper cover layer, by device 24, to form a seal as the layers pass between the lower belt 27 and upper belt 26, the latter being vertically adjustable by hydraulic rams 28. Rubber beading 25 rotates with the belts and is engaged by rails on the belts to form side wall seals. Heating is by a combination of internally placed heating elements and a forced-draught hot air system (Fig. 3, not shown). The cover layers may be taken off by rolls 29 and 30 as the panel emerges through the belts to pass through cutting and grooving devices 32 to 37 to be stacked 38.

69. 发明专利

FR2354361A1 未知
公开(公告)号：FR2354361A1
公开(公告)日：1978-01-06
申请号：FR7716830
申请日：1977-06-02
申请人： GUSMER FREDERICK EMIL
IPC分类号： C08J9/04 , C08J9/12 , C08L61/10 , B29G7/02 , C08G8/10
摘要： Closed cell phenol-aldehyde foam is prepared by a method which includes a novel frothing and curing technique. An admixture containing a liquid phenolaldehyde resole resin, a volatile blowing agent, and a surfactant is frothed to produce a stable froth containing closed cells. The cell walls are formed of the liquid resole resin and the closed cells are expanded by the blowing agent in gaseous phase. The froth is formed into an uncured shape and the liquid resole resin is cured to the solid state in the presence of an acid catalyst to produce cured closed cell foam. The internal temperature throughout the shape during curing is above the boiling point of the blowing agent but less than 212 DEG F., and is sufficiently low to prevent further expansion of the shape in an amount to rupture the closed cell walls and thereby form an open cell structure. The liquid resole resin has a sufficiently low exothermic heat of reaction and the acid catalyst is present in an amount whereby the internal temperature of the shape during curing is less than 212 DEG F. and within the aforesaid limits. The improved closed cell foam thus prepared is also provided.

70. 发明专利

CH579454A5 未知
公开(公告)号：CH579454A5
公开(公告)日：1976-09-15
申请号：CH1479374
申请日：1974-11-05
申请人： ICI LTD
IPC分类号： C08J9/02 , B29B7/00 , B29C39/00 , B29C39/38 , C08J9/12 , C08J9/24 , C08L61/24 , C09D5/46 , B29G7/02
摘要： A strong, expanded moulded panel or board, having a specific gravity between 0.2 and 0.8, is produced by heating dry urea formaldehyde resin containing 4% to 8% volatile materials in a mould at between 130 DEG and 160 DEG C under light restraining pressure between 30 and 300 psi which permits moderate expansion of the resin owing to the gasification of the volatile materials.

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