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2. 发明专利

SG171711A1 PROPYLENE/ALPHA-OLEFIN BLOCK INTERPOLYMERS 未知
公开(公告)号：SG171711A1
公开(公告)日：2011-07-28
申请号：SG2011027224
申请日：2009-01-30
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： MARCHAND GARY , CHEUNG YUNWA , POON BENJAMIN , WEINHOLD JEFFREY , WALTON KIM , GUPTA PANKAJ , LI PI SHAN COLIN , HUSTAD PHILLIP , KUHLMAN ROGER , CARNAHAN EDMUND , GARCIA-MEITIN EDDY , ROBERTS PATRICIA
摘要： Embodiments of the invention provide a class of propylene/α-olefin blockinterpolymers. The propylene/α-olefin interpolymers are characterizedby an average block index, ABI, which is greater than zero and up to about 1.0 anda molecular weight distribution, Mw/Mn, greater than about1.3. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively,the block propylene/α-olefin interpolymer is characterized by havingat least one fraction obtained by Temperature Rising Elution Fractionation('TREF'), wherein the fraction has a block index greater than about0.3 and up to about 1.0 and the propylene/α-olefin interpolymer has a molecularweight distribution, Mw/Mn, greater than about 1.4.

3. 发明专利

AT418580T 未知
公开(公告)号：AT418580T
公开(公告)日：2009-01-15
申请号：AT02768677
申请日：2002-08-23
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： MARCHAND GARY , BERARD MARK
IPC分类号： C08L27/06 , C08K3/00 , C08K3/26 , C08L23/00 , C08L23/04 , C08L23/08 , C08L23/28
摘要： The present invention is specifically directed to improved polyvinyl chloride compositions having excellent impact strength. In particular, the impact resistant composition comprises a) a vinyl chloride polymer, b) at least one ethylene/alpha-olefin copolymer, said copolymer having a density of 0.858 to 0.91 g/cc and having a melt index from an I10 value of 0.1 to an I2 value of 10, and c) at least one randomly chlorinated olefin polymer having a chlorine content of from 20-40 percent by weight, the feedstock for said chlorinated olefin polymer having a melt index from an I10 value of 0.1 to an I2 value of 10. Optionally, these impact resistant polyvinyl chloride compositions may have inorganic filler levels from 5 to 50 parts per hundred relative to the polyvinyl chloride polymer.

6. 发明专利

AT482994T 未知
公开(公告)号：AT482994T
公开(公告)日：2010-10-15
申请号：AT06836033
申请日：2006-03-10
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： LAAKSO RAYMOND , MARCHAND GARY
IPC分类号： C08K5/3432 , C08K5/19 , C08K5/3445 , C08K5/47 , C08L23/28
摘要： The instant invention is an improved cure system composition and a method for curing chlorinated elastomer compositions. The cure system composition includes a polymercapto crosslinking agent, an inorganic base, and a quaternary ammonium salt. The quaternary ammonium salt has a formula selected from the group consisting of wherein R1 is an alkyl or aryl group containing between 4 and 12 carbon atoms; wherein R2 and R3 are independently alkyl or aryl groups containing between 1 and 8 carbon atoms; wherein the total number of carbon atoms on R2 and R3 are between 3 and 9; wherein R4 and R5 are methyl groups, and R6 is an alkyl group containing between 2 and 8 carbon atoms; and wherein X is an anion. The method for curing a chlorinated elastomer, composition according to instant invention includes the following steps: (1) providing a chlorinated elastomer composition; (2) providing a cure system composition as described above; (3) contacting said chlorinated elastomer composition with said cure system composition; and (4) thereby curing said chlorinated elastomer composition.

7. 发明专利

AT455148T 未知
公开(公告)号：AT455148T
公开(公告)日：2010-01-15
申请号：AT07853513
申请日：2007-08-21
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： LAAKSO RAYMOND , MARCHAND GARY
IPC分类号： C08K3/22 , C08K3/24 , C08K5/092 , C08K5/098 , C08K5/17 , C08K5/18 , C08K5/46 , C08K5/47
摘要： The instant invention is a cure system for halogenated elastomer compositions, a curable halogenated elastomer composition, and a method for curing a halogenated elastomer composition. The cure system for halogenated elastomer compositions includes a polymercapto crosslinking agent, an inorganic base, and a hydrated salt selected from the group consisting of lithium citrate, trilithium citrate pentahydrate, trilithium citrate tetrahydrate, and monolithium dihydrogen citrate monohydrate. The curable halogenated elastomer composition includes a chlorinated elastomer, and a cure system including a polymercapto crosslinking agent, an inorganic base, and a hydrated salt selected from the group consisting of lithium citrate, trilithium citrate pentahydrate, trilithium citrate tetrahydrate, and monolithium dihydrogen citrate monohydrate. Furthermore, the method for curing a halogenated elastomer composition includes the following steps: (1) providing a chlorinated elastomer composition; (2) providing a cure system composition including a polymercapto crosslinking agent, an inorganic base, and a hydrated salt selected from the group consisting of lithium citrate, trilithium citrate pentahydrate, trilithium citrate tetrahydrate, and monolithium dihydrogen citrate monohydrate; (3) uniformly blending the cure system into the chlorinated elastomer composition; (4) thereby forming a curable chlorinated elastomer composition; (5) subjecting the curable chlorinated elastomer composition to heat or heat and pressure; and (6) thereby curing the curable chlorinated elastomer composition.

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