专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2004042640A Multi-layer product containing polycarbonate 审中-公开
公开(公告)号：JP2004042640A
公开(公告)日：2004-02-12
申请号：JP2003190196
申请日：2003-07-02
申请人： Bayer Ag , バイエルアクチェンゲゼルシャフト
发明人： GORNY RUEDIGER , ANDERS SIEGFRIED , NISING WOLFGANG , ROEHNER JUERGEN , ROELOFS MARCO , KRATSCHMER SILKE
IPC分类号： C08G64/18 , B32B27/36 , C08G64/06
CPC分类号： B32B27/08 , B32B7/02 , B32B27/36 , Y10T428/31507
摘要： PROBLEM TO BE SOLVED: To disclose a multi-layer product having a co-extrusion-processing layer and a base layer. SOLUTION: The co-extrusion-processing layer contains co-polycarbonate having a repeating unit represented by formula (I) [wherein, R 1 to R 4 are each defined according to the present invention] and the repeating unit represented by formula (II) [wherein, R 5 to R 8 and X are each defined according to the present invention.] The base layer contains polycarbonate characterized by indicating lower chemical resistance than that being indicated by the above polycarbonate. The present product is characterized in that resistance against the attack of a chemical product is enhanced. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2003119262A PRODUCTION METHOD OF POLYESTER CARBONATE 审中-公开
公开(公告)号：JP2003119262A
公开(公告)日：2003-04-23
申请号：JP2002293700
申请日：2002-10-07
申请人： BAYER AG
发明人： KRATSCHMER SILKE , ALEWELT WOLFGANG , BRUDER FRIEDRICH KARL , HAESE WILFRIED , WEHRMANN ROLF , FISCHER PETER , ROELOFS MARCO , BUNZEL LOTHAR
IPC分类号： C08G63/64 , C08G63/78 , C08G63/79 , C08L69/00
摘要： PROBLEM TO BE SOLVED: To provide a production method of a polyester carbonate capable of being obtained without requiring continuous and complex control of pH, having good inherent color, and containing little acid anhydride structure. SOLUTION: This method of producing a polyester carbonate contains a process for producing an oligomer by melt ester exchange method and a process for forming a polymerizable polyester carbonate by condensation of the oligomer by interfacial reaction method.

3. 发明专利

CA2434999A1 MULTI-LAYER PRODUCT CONTAINING POLYCARBONATE 未知
公开(公告)号：CA2434999A1
公开(公告)日：2004-01-10
申请号：CA2434999
申请日：2003-07-07
申请人： BAYER AG
发明人： ROELOFS MARCO , ANDERS SIEGFRIED , GORNY RUDIGER , ROHNER JURGEN , NISING WOLFGANG , KRATSCHMER SILKE
IPC分类号： C08G64/18 , B32B27/36 , C08G64/06 , B32B27/28 , C08L69/00 , C08G64/04 , B29C47/06 , C08J5/18
摘要： A multi-layer product comprising a coex layer and a base layer is disclosed. The coex layer contains a copolycarbonate derived from repeat units having the formula (I) where R1 to R4 are defined and repeat units having the formula (II) where R5 to R8 and X are defined. The base layer contains a polycarbonate characterized in that its chemical resistance is lesser than that of said copolycarbonate. The product is characterized by its improved resistance to chemical attack. Also disclosed are a uses of, and a method for producing the product.

4. 发明专利

DE10159373A1 未知
公开(公告)号：DE10159373A1
公开(公告)日：2003-06-12
申请号：DE10159373
申请日：2001-12-04
申请人： BAYER AG
发明人： GORNY RUEDIGER , ANDERS SIEGFRIED , NISING WOLFGANG , ROEHNER JUERGEN , ROELOFS MARCO
IPC分类号： B32B27/36 , C08L69/00 , C08L67/00 , B32B27/18 , B32B31/30 , E04C2/54
摘要： A multilayered article of manufacture is disclosed. The article comprising a layer containing polycarbonate and a layer containing a copolyester. The repeating units of the copolyester are derived from dicarboxylic acids and from diols, where the repeating units derived from dicarboxylic acids contain 50 to 100% of units derived from terephthalic acid, 0 to 50% of units derived from isophthalic acid and 0 to 10% of units derived from other dicarboxylic acids, the sum of the proportions of the repeating units derived from terephthalic acid, isophthalic acid and other dicarboxylic acids is 100%, the percents being relative to the molar amount of the dicarboxylic acids. The repeating units derived from diols contain 0 to 97% of units derived from ethylene glycol, 0 to 97% of units derived from cyclohexanedimethanol and 0 to 3% of units derived from diethylene glycol and 0 to 10% of units derived from other diols, where the sum of the proportions of the repeating units derived from ethylene glycol, cyclohexanedimethanol, diethylene glycol and other diols is 100%, the percents being relative to the molar amount of diols. Also disclosed is a process for the production of the multilayered article of manufacture.

5. 发明专利

BR0013702A 未知
公开(公告)号：BR0013702A
公开(公告)日：2002-05-07
申请号：BR0013702
申请日：2000-08-18
申请人： BAYER AG
发明人： ROEHNER JUERGEN , ZANDER KLAUS , GORNY RUEDIGER , ROELOFS MARCO
IPC分类号： B32B27/28 , B32B27/08 , B32B37/00 , B32B37/15 , B32B37/20 , B32B31/00
摘要： A process for the preparation of a plastic composite is disclosed. The composite contains a first fluoropolymer layer, a second, middle layer of polycarbonate and a third layer of ethylene-vinyl acetate copolymer. The process entails preparing a plastics composite of fluoropolymer and polycarbonate layers and applying the layer of ethylene-vinyl acetate copolymer to the polycarbonate layer.

6. 发明专利

DE19941214A1 未知
公开(公告)号：DE19941214A1
公开(公告)日：2001-03-01
申请号：DE19941214
申请日：1999-08-30
申请人： BAYER AG
发明人： ROEHNER JUERGEN , ZANDER KLAUS , GORNY RUEDIGER , ROELOFS MARCO
IPC分类号： B32B27/28 , B32B27/08 , B32B37/00 , B32B37/15 , B32B37/20 , C08J5/12 , C08L27/14 , C08L31/04 , C08L69/00
摘要： The invention relates to plastic composites comprised of three layers, whereby the first layer is made of a fluoropolymer, the second middle layer is made of polycarbonate, and the third layer is made of ethylene vinylacetate copolymer. The invention also relates to a method for producing plastic composites of this type.

7. 发明专利

AU766880B2 Multilayer plastic composites and a method for the production thereof 未知
公开(公告)号：AU766880B2
公开(公告)日：2003-10-23
申请号：AU7277300
申请日：2000-08-18
申请人： BAYER AG
发明人： ROHNER JURGEN , ZANDER KLAUS , GORNY RUDIGER , ROELOFS MARCO
IPC分类号： B32B27/28 , B32B27/08 , B32B37/00 , B32B37/15 , B32B37/20 , B32B31/00
摘要： A process for the preparation of a plastic composite is disclosed. The composite contains a first fluoropolymer layer, a second, middle layer of polycarbonate and a third layer of ethylene-vinyl acetate copolymer. The process entails preparing a plastics composite of fluoropolymer and polycarbonate layers and applying the layer of ethylene-vinyl acetate copolymer to the polycarbonate layer.

8. 发明专利

DE10045587A1 Copolyester carbonate, useful for the production of CD-ROM, CO-R, CD-RW, DVD and MO-(magneto-optical) disks, contains repeating bifunctional structural units derived from 32-44C acids. 未知
公开(公告)号：DE10045587A1
公开(公告)日：2001-09-27
申请号：DE10045587
申请日：2000-09-15
申请人： BAYER AG
发明人： BRUDER FRIEDRICH , HAESE WILFRIED , WEHRMANN ROLF , FISCHER PETER , ROELOFS MARCO , KRATSCHMER SILKE
IPC分类号： C08G63/64 , G11B7/2534 , G11B7/2535 , G11B7/254 , G11B7/2542 , G11B7/257 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , C08J5/18 , B32B15/08 , G11B7/24
摘要： A copolyester carbonate contains repeating bifunctional structural units (A) derived from 30-42C acids. The copolyester carbonate contains repeating bifunctional structural units (A) of formula (I): D = a mixture of 30-42C divalent hydrocarbon radicals of formula (Ia)-(Ie); E1-E4 = -(CH2)i-, -(CH2)j, -(CH2)kCH3 or -(CH2)lCH3; and a-p = 1-10. Independent claims are included for (i) molded articles containing the copolyester carbonate (I), preferably optical lenses, sheet and film (ii) a machine readable data carrier, based on a substrate comprising the copolyester carbonate (I).

9. 发明专利

DE10230983A1 未知
公开(公告)号：DE10230983A1
公开(公告)日：2004-01-22
申请号：DE10230983
申请日：2002-07-10
申请人： BAYER AG
发明人： GORNY RUEDIGER , ANDERS SIEGFRIED , NISING WOLFGANG , ROEHNER JUERGEN , ROELOFS MARCO , KRATSCHMER SILKE
IPC分类号： C08G64/18 , B32B27/36 , C08G64/06 , B32B31/30
摘要： Multilayer polycarbonate sheet with (A) a layer of copolycarbonate derived from a 4,4'-dihydroxybiphenyl compound and another bis-phenol and (B) a layer of polycarbonate with a lower chemical resistance than the copolycarbonate in (A). A multilayer product (P1) with two layers, one of which (A) contains a copolycarbonate with 0.1-46 mol.% repeat units of formula (I) and 99.9-54 mol.% repeat units of formula (II), while the other (B) contains a polycarbonate with lower chemical resistance than the copolycarbonate. R1-R4 = H, 1-4C alkyl, optionally substituted phenyl or halogen; R5-R8 = H, methyl, Cl or Br; and X = 1-5C alkylene, 2-5C alkylidene, 5-6C cycloalkylene or 5-10C cycloalkylidene. An Independent claim is also included for a method for the production of P1 by coextrusion.

10. 发明专利

DE10149042A1 未知
公开(公告)号：DE10149042A1
公开(公告)日：2003-04-17
申请号：DE10149042
申请日：2001-10-05
申请人： BAYER AG
发明人： KRATSCHMER SILKE , ALEWEIT WOLFGANG , BRUDER FRIEDRICH , HAESE WILFRIED , WEHRMANN ROLF , FISCHER PETER , ROELOFS MARCO , BUNZEL LOTHAR
IPC分类号： C08G63/64 , C08G63/78 , C08G63/79 , C08L69/00 , C08J5/02 , C08G64/30
摘要： Polyester carbonates can be prepared without contstant pH control having good color and a low degree of anhydride structure by a combination of ester exchange and a phase boundary surface process, i.e. in a first stage oligomers are prepared by a melt ester interchange process, which are condensed in a second stage by a phase boundary surface process to polyester carbonate polymers. Polyester carbonates can be prepared without contstant pH control having good color and a low degree of anhydride structure by a combination of ester exchange and a phase boundary surface process, i.e. in a first stage oligomers are prepared by a melt ester interchange process, which are condensed in a second stage by a phase boundary surface process to polyester carbonate polymers. In the first stage, at least one dicarboxylc acid of formula (I): where T = a branched or linear optionally unsaturated 4-40C alkyl, aralkyl, or cycloalkyl hydrocarbon, at least one dicarboxylic acid of formula (II), in which Ar = 6-30, preferably 6-25C aromatic, which can contain one or more aromatic nuclei, can be substituted, and can contains an aliphatic or cycloalikphatic residue, or alkylaryl or hetero atom as bridging member, at least one diaryl carbonate of formula (III) and or formula (IV) where R, R', and R'' = H, optionally branched 2-34C alkyl/cycloalkyl, 7-34C alkaryl, or 6-34C aryl, and a melt ester interchange catalyst is optionally used for oligomer synthesis. Independent claims are included for: (1) a polyester carbonate prepared as above; (2) a shaped body and extrudate obtained from polyester carbonate; and (3) an optical store obtained from polyester carbonate.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式