Block Copolymer Derived From Vinyl(idene) Chloride Patents (Class 525/318)
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Patent number: 7208558Abstract: Radical polymerization process for the preparation of halogenated polymers employing one or more ethylenically unsaturated monomers, at least one of which is chosen from halogenated monomers, molecular iodine and one or more radical-generating agents chosen from diazo compounds, peroxides and dialkyl diphenylalkanes Radical polymerization process for the preparation, starting from the halogenated polymers prepared by the process as described above, of block copolymers, at least one block of which is a halogenated polymer block. Halogenated polymers which have a number-average molecular mass Mn of greater than 1.0×104 and an Mz/Mw ratio of less than 1.65. Block copolymers, at least one block of which is a block of halogenated polymer identical to the halogenated polymers described above. Block copolymers comprising at least one halogenated polymer block which have a number-average molecular mass Mn of greater than 1.5×104 and a polydispersity index Mw/Mn of less than 1.60.Type: GrantFiled: May 11, 2006Date of Patent: April 24, 2007Assignee: Solvay (Societe Anonyme)Inventors: Patrick Lacroix-Desmazes, Romain Severac, Bernard Boutevin, Vincent Bodart, Vincent Kurowski
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Patent number: 7078473Abstract: Radical polymerization process for the preparation of halogenated polymers and block copolymers. Halogenated polymers and block copolymers.Type: GrantFiled: May 16, 2003Date of Patent: July 18, 2006Assignee: Solvay (Societe Anonyme)Inventors: Patrick Lacroix-Desmazes, Romain Severac, Bernard Boutevin, Vincent Bodart, Vincent Kurowski
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Publication number: 20020177670Abstract: (Meth)acrylic polymers having alkenyl or curable silyl groups at the chain ends in high functionality ratios are prepared by a process which comprises (i) preparing a (meth)acrylic polymer having halogen atoms at the chain ends, using an organohalogenated compound or a halosulfonyl compound as an initiator and a metal complex catalyst wherein the central metal atom is selected from the group consisting of the elements of Groups 8, 9, 10 and 11 of the periodic table; and (ii) transforming the halogen atom into an alkenyl group or a curable silyl group-containing substituent.Type: ApplicationFiled: May 13, 2002Publication date: November 28, 2002Applicant: Kaneka CorporationInventors: Masato Kusakabe, Kenichi Kitano
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Patent number: 6359081Abstract: A functional block copolymer useful as a compatibilizing agent for a blend of a condensation polymer and vinyl polymer comprises segments of a condensation polymer and a vinyl polymer derived from a reactive functional group-containing monomer or a functions-imparting monomer such as ultraviolet absorption or flame retardant functions. The block copolymer can further include a segment of a lower cohesive energy polymer. The condensation or vinyl polymer segment, or the lower cohesive energy polymer segment contains azo or peroxide groups which act as a polymerization initiator for the copolymerization of the vinyl monomer forming the vinyl polymer segment.Type: GrantFiled: April 19, 2000Date of Patent: March 19, 2002Assignees: Takiron Co., Ltd., Osaka Municipal GovernmentInventors: Masayuki Shimada, Yasuyuki Agari, Yoichiro Makimura
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Patent number: 6316550Abstract: One embodiment of the present invention provides a process, which includes: graft polymerizing a vinyl chloride monomer in suspension in the presence of a core-shell impact modifier; wherein the core-shell impact modifier includes: a core including polyvinyl chloride or vinyl chloride copolymers; and a shell including crosslinked alkyl (meth)acrylate homo- or copolymers. Another embodiment of the present invention provides a thermoplastic polyvinyl chloride molding composition modified with an elastomer-containing core-shell modifier, prepared by a process, which includes graft polymerizing a vinyl chloride monomer in suspension in the presence of a core-shell impact modifier; wherein the core-shell impact modifier includes a core including polyvinyl chloride or vinyl chloride copolymers; and a shell including crosslinked alkyl (meth)acrylate homo- or copolymers. Another embodiment of the present invention provides a plastic profile, which includes the above-noted composition.Type: GrantFiled: December 7, 2000Date of Patent: November 13, 2001Assignee: Vestolit GmbH & Co. KGInventors: Axel Stieneker, Radu Bordeianu, Thomas Neu, Harald Sturm, Wilhelm Friedrich Schmitt
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Patent number: 5604034Abstract: A decorative film that is free of deterioration of the surface film due to the generation of wrinkles even when being applied to an adherent having plasticizer migration ability, such as polyvinyl chloride, and an adhesive therefor comprising: 100 parts by weight of a copolymer having a weight average molecular weight of 700,000-1,200,000 obtained by copolymerization of 64-75% by weight of a (meth)acrylate having a C.sub.4 -C.sub.8 -alkyl group, 20-26% by weight of methyl methacrylate and 5-10% by weight of acrylic acid, and 0.005 to 0.1 parts by weight of a crosslinker.Type: GrantFiled: September 19, 1994Date of Patent: February 18, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventor: Hiroshi Matsuda
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Patent number: 5312871Abstract: This invention concerns a "living" free radical polymerization process for preparing polymers having a narrow distribution of molecular weights.Type: GrantFiled: July 27, 1993Date of Patent: May 17, 1994Assignee: Carnegie Mellon UniversityInventors: Daniela Mardare, Krzysztof A. Matyjaszewski
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Patent number: 5240773Abstract: A fabric reinforced thermoplastic composite which is reformable at a temperature less than about 100.degree. C. The thermoplastic comprises about 70 to 95% by weight of polyvinyl chloride and about 5 to 30% by weight of a halogenated polyvinyl chloride. The composite is used for forming orthotics and prosthesis devices.Type: GrantFiled: January 13, 1992Date of Patent: August 31, 1993Assignee: Mutual Industries, Inc.Inventor: Edmund M. Dunn