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    Methacrylonitrile polymerization process
    1.
    发明授权
    Methacrylonitrile polymerization process 失效
    甲基丙烯酸聚合方法

    公开(公告)号：US3742092A

    公开(公告)日：1973-06-26

    申请号：US3742092D

    申请日：1971-07-14

    Applicant: STANDARD OIL CO

    Inventor： DUKE J ,  PREM D

    IPC: C08F265/08 ,  C08F279/02 ,  C08F15/22 ,  C08F19/06 ,  C08F19/08

    CPC classification number: C08F265/08 ,  C08F279/02 ,  C08F220/42

    Abstract: A polymerization process is described in which impact resistant methacrylonitrile homopolymers and copolymers are prepared in the presence of a diene rubber by free radical polymerization at improved rates by conducting the polymerization in aqueous emulsion in the presence of some preformed seed polymer having small particle size.

    Abstract translation: 描述了聚合方法，其中通过在具有小粒径的一些预制种子聚合物的存在下在水乳液中进行聚合，在二烯橡胶存在下通过自由基聚合以更高的速率制备抗冲击的甲基丙烯腈均聚物和共聚物。

    Impact-resistant olefinic-nitrile copolymers
    3.
    发明授权
    Impact-resistant olefinic-nitrile copolymers 失效
    抗冲击烯烃共聚物

    公开(公告)号：US3839495A

    公开(公告)日：1974-10-01

    申请号：US36133673

    申请日：1973-05-17

    Applicant: STANDARD OIL CO

    Inventor： PREM D ,  DUKE J

    IPC: C08F265/00 ,  C08F8/30 ,  C08F20/44 ,  C08F265/04 ,  C08G45/04

    CPC classification number: C08F20/44 ,  C08F2/16 ,  C08F265/04 ,  C08F220/42 ,  C08F220/10

    Abstract: 1. THE POLYMERIC COMPOSITION RESULTING FROM THE POLYMERIZATION OF 100 PARTS BY WEIGHT OF (A) AT LEAST 70% BY WEIGHT OF AT LEAST ONE NITRILE MONOMER HAVING THE STRUCTURE

    CH2=C(-R)-CN

    WHEREIN R IS HYDROGEN, LOWER ALKYL GROUP HAVING FROM 1 TO 4 CARBON ATOMS, OR A HALOGEN, AND (B) UP TO 30% BY WEIGHT BASED ON THE COMBINED WEIGHTS OF (A) AND (B) OF AN ESTER HAVING THE STRUCTURE

    CH2=C(-R1)-COO-R2

    WHEREIN R1 IS HYDROGEN, AN ALKYL GROUP HAVING FROM 1 TO 4 CARBON ATOMS, OR A HALOGEN, AND R2 IS AN ALKYL GROUP HAVING FROM 1 TO 6 CARBON ATOMS, AN ALKYL GROUP, OR AN EPOXY ROUP HAVING FROM 2 TO 6 CARBON ATOMS IN THE PRESENCE OF FROM 1 TO 40 PARTS BY WEIGHT OF (C) A RUBBERY COPOLYMER OF A CONJUGATED DIENE MONOMER SELECTED FROM THE GROUP CONSISTING OF BUTADIENE AND ISOPRENE AND AT LEAST ONE ESTER HAVING THE STRUCTURE CH2=C(-R1)-COO-R2 WHEREIN R1 AND R2 HAVE THE FOREGOING DESIGNATIONS WHEREIN SAID RUBBERY COPOLYMER CONTAINS FROM 5 TO 25% BY WEIGHT OF POLYMERIZED CONJUGATED DIENE AND FROM 75 TO 95% BY WEIGHT OF POLYMERIZED ESTER.

    5.
    发明专利
    未知

    公开(公告)号：BR7403285D0

    公开(公告)日：1974-12-03

    申请号：BR328574

    申请日：1974-04-24

    Applicant: STANDARD OIL CO

    Inventor： PREM D ,  DUKE J

    IPC: C08F265/00 ,  C08F8/30 ,  C08F20/44 ,  C08F265/04 ,  C08F27/00 ,  C08D5/00

    Abstract: 1444292 Graft polymers STANDARD OIL CO 26 March 1974 [17 May 1973] 13319/74 Heading C3G A graft polymer is produced by polymerizing 100 parts by weight of (A) at least 70% by weight of an olefinically unsaturated nitrile and (B) up to 30%, by weight based on the weight of (A) plus (B), of an ester having the structure wherein R 1 is -H, C 1 to C 4 -alkyl or halogen, and R 2 is C 1 to C 6 -alkyl, allyl or an epoxy group having 2 to 6 carbon atoms in the presence of 1 to 40 parts by weight of (C) a rubbery copolymer of 5 to 25% of polymerized butadiene and/or isoprene and 95 to 75% of polymerized ester having the said structure as above. Examples are given in which acrylonitrile and methyl acrylate are grafted in aqueous emulsion on to a copolymer of butadiene, glycidyl acrylate and n-butyl acrylate or ethyl acrylate or of butadiene, allyl methacrylate and ethyl acrylate.

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