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1. 发明授权

US2246822A Method of controlling the physical dimensions of molded hydrocolloid bodies 失效
标题翻译：控制模制的水胶体的物理尺寸的方法
公开(公告)号：US2246822A
公开(公告)日：1941-06-24
申请号：US33211840
申请日：1940-04-27
申请人： SURGIDENT LTD
发明人： ROSSEM WALTER J VAN
IPC分类号： A61K6/10
CPC分类号： A61K6/10 , C08L5/12

2. 发明授权

US2105623A Flexible package for hydrocolloid impression materials 失效
公开(公告)号：US2105623A
公开(公告)日：1938-01-18
申请号：US15572137
申请日：1937-07-26
申请人： SURGIDENT LTD
发明人： ROSSEM WALTER J VAN
IPC分类号： B65D81/00
CPC分类号： B65D81/00

3. 发明专利

GB556695A Hydrocolloid moulding composition and material for use therein 未知
公开(公告)号：GB556695A
公开(公告)日：1943-10-18
申请号：GB476842
申请日：1942-04-10
申请人： SURGIDENT LTD
IPC分类号： C08L5/12
摘要： 556,695. Hydrocolloids modified for dental moulding &c. SURGIDENT, Ltd. April 10, 1942, No. 4768. Convention date, April 2, 1941. [Class 70] Dental moulding properties &c. of hvdrocolloids such as agar-agar, are improved by adding a slightly alkaline, aqueous dispersion of an oxide or hydroxide of an amphoteric metal, e.g., tin, zinc, manganese, or aluminium, and a less quantity of a borate, e.g., calcium or potassium metaborate or manganous borate. A finely-divided, water-insoluble, inorganic filler may also be added. The hydroxide may be precipitated preferably from a salt, e.g., tin sulphate or chloride in an acid medium by adding an alkaline compound of an alkali metal and may be peptized by potassium hydrate. Other additives mentioned include nickel nitrate antiseptic &c.

4. 发明专利

GB561197A Hydrocolloid moulding composition and material for use therein 未知
公开(公告)号：GB561197A
公开(公告)日：1944-05-09
申请号：GB1889943
申请日：1942-04-10
申请人： SURGIDENT LTD
IPC分类号： A61K6/90
摘要： Dental moulding properties &c. of hydrocolloids, e.g agar-agar, are improved by adding a slightly alkaline aqueous dispersion of an oxide or hydroxide of an amphoteric metal, e.g. tin, zinc, manganese or aluminium, and a finely-divided, water-insoluble inorganic filler, e.g. calcium sulphate, precipitated calcium carbonate, or magnesium carbonate. A borate, e.g. calcium metaborate may also be included. The hydroxide may be formed by precipitation from an acid salt solution such as tin sulphate or chloride by adding an alkaline compound of an alkali metal, and may be peptized by potassium hydrate.

5. 发明授权

US2623808A Dental impression compositions 失效
标题翻译：牙齿印模组合物
公开(公告)号：US2623808A
公开(公告)日：1952-12-30
申请号：US22965051
申请日：1951-06-02
申请人： SURGIDENT LTD
发明人： MEYER HERBERT G
IPC分类号： A61K6/10
CPC分类号： A61K6/10

6. 发明授权

US2532598A Guard device for syringes for use with heat-fluent materials 失效
标题翻译：用于与热流体材料一起使用的注射器的防护装置
公开(公告)号：US2532598A
公开(公告)日：1950-12-05
申请号：US79035147
申请日：1947-12-08
申请人： SURGIDENT LTD
发明人： BOEGER HENRY F
IPC分类号： A61M5/00 , A61M5/31
CPC分类号： A61M5/00 , A61M2005/3139

7. 发明授权

US2136033A Dispensing package of thermoplastic material 失效
标题翻译：点胶包装的热塑性材料
公开(公告)号：US2136033A
公开(公告)日：1938-11-08
申请号：US10761836
申请日：1936-10-26
申请人： SURGIDENT LTD
发明人： ROSSEM WALTER J VAN
IPC分类号： B65D35/12
CPC分类号： B65D35/12

8. 发明授权

US2108953A Flexible package for hydrocolloid impression materials 失效
标题翻译：柔性包装用于水胶体印模材料
公开(公告)号：US2108953A
公开(公告)日：1938-02-22
申请号：US8364736
申请日：1936-06-05
申请人： SURGIDENT LTD
发明人： ROSSEM WALTER J VAN
IPC分类号： B65D81/00
CPC分类号： B65D81/00 , Y10S29/069

9. 发明授权

US2035585A Saliva ejector 失效
公开(公告)号：US2035585A
公开(公告)日：1936-03-31
申请号：US66840033
申请日：1933-04-28
申请人： SURGIDENT LTD
发明人： BOEGER HENRY F , ROSSEM WALTER J VAN
IPC分类号： A61C17/08 , A61C19/00
CPC分类号： A61C19/001 , A61C17/043

10. 发明专利

GB500000A Moisture-impervious package of impression material and method of preparing the same 未知
公开(公告)号：GB500000A
公开(公告)日：1939-02-01
申请号：GB70638
申请日：1938-01-10
申请人： SURGIDENT LTD
IPC分类号： B65D81/00
摘要： 500,000. Capsules; packages of hydrocolloid impression material. TRIGGS, W. W. (Surgident, Ltd.) Jan. 10, 1938, No. 706. [Class 81 (i)] [Also in Group XVII] Packages of moisturecontaining hydrocolloid dental impression compositions of the kind described in Specifications 271,306, [Class 70], and 464,978, [Group V], are prepared by forming an elongated body of said composition having a partial coating of a flexible moisture-impervious material and then applying a fluid coating composition to the remaining surface so as to overlap and become bonded to the first mentioned coating. The coating composition should be such as to permit the unopened package to be moderately heated to render the hvdrocolloid fluent and to be flexible so as to permit the package to be kneaded whilst cooling to body temperature. Suitable coating materials are vinyl resins such as the polymerized vinyl halide resin known as Koroseal, or a solution thereof known as Korolac, or mixed solutions of cellulosic compounds with moisture-proofing substances such as rubber, resins, resinous gums or waxes. A rod of hydrocolloid 2, Fig. 2, may be extruded into a bath of coating composition to form a coating 1, cut into lengths and coated at the ends 3 by dipping ; or lengths of uncoated hydrocolloid may be dipped for part of their length and then dipped at their other ends so that the coatings formed overlap ; or the hydrocolloid may be cast into a pre-formed capsule 8, Fig. 5, and the open end dipped to form a sealing cap 10. In the first of these methods the coating 1 may be formed by anodic deposition from a latex dispersion, or the extruded rod of composition may be coated by a series of spraying operations alternating with treatment by hot air blasts. An example of a liquid for coating by dipping is a mixture of solutions of celluloid and of rubber respectively, in cyclohexanol or its acetate. Celluloid alone is stated to be unsuitable as a coating composition. Specification 444,908 also is referred to.

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