Process for the preparation of polyvinyl chloride moulding compositions
    1.
    发明授权
    Process for the preparation of polyvinyl chloride moulding compositions 失效
    制备聚氯乙烯模塑组合物的方法

    公开(公告)号:US3882074A

    公开(公告)日:1975-05-06

    申请号:US27312472

    申请日:1972-07-19

    CPC classification number: C08J3/22 C08J2327/06

    Abstract: A powdered composition capable of being worked on heating is prepared from a PVC, or PVC copolymer, base, an/ impact resistant/ antishock additive, stabilisers and lubricants, by first mixing the additives at a temperature of 40* to 120*C. The mixture is allowed to cool and then dispersed in the PVC base by mixing in the cold. The mixture becomes homogeneous during the heating prior to working.

    Abstract translation: 通过在40℃〜120℃的温度下首先混合添加剂,由PVC,PVC共聚物,碱,耐冲击/抗震添加剂,稳定剂和润滑剂制备能加热加工的粉末状组合物。 使混合物冷却,然后通过在冷的混合中分散在PVC基料中。 在加热之前混合物变得均匀。

    Silicone resins used as surfactants in vinyl chloride foam

    公开(公告)号:US3798189A

    公开(公告)日:1974-03-19

    申请号:US3798189D

    申请日:1973-03-01

    Applicant: GEN ELECTRIC

    Abstract: A COMPOSITION COMPRISING A VINYL CHLORIDE POLYMER, A PLASTICIZER AND A SILICONE RESIN SELECTED FROM A SILICONE RESIN HAVING R3SIO1/2 MONOFUNCTIONAL UNITS AND SIO2 TETRAFUNCTIONAL UNITS WITH THE RATIO OF THE MONOFUNCTIONAL UNITS TO THE TETRAFUNCTIONAL UNITS BEING FROM 0.25 TO 0.75 WITH 3.0 TO 5.0% BY WEIGHT OF HYDROXYL GROUPS AND A SILICONE RESIN HAVING R''3SIO1/2 MONOFUNCTIONAL UNITS AND SIO2 TETRAFUNCTIONAL UNITS AND R22SIO DIFUNCTIONAL UNITS WITH THE RATIO OF MONOFUNCTIONAL UNITS TO TETRAFUNCTIONAL UNITS TO DIFUNCTIONAL UNITS BEING FROM 0.25-0.75 TO 1 TO 0.05-0.1 WITH 3.0 TO 5.0% BY WEIGHT OF HYDROXYL GROUPS AND WHEREIN R, R'', R2 ARE MONOFUNCTIONAL HYDROCARBON RADICALS. THE COMPOSITION IS MECHANICALLY FROTHED WITH AIR TO PRODUCE A FOAM WHICH IS THEN HEATED TO GEL AND FUSE THE FOAM. THERE IS PREFERABLY USED IN THE ABOVE COMPOSITION ONE OF THE ABOVE SILICONE RESINS WHICH HAS BEEN FURTHER TREATED SO THAT IT HAS LESS THAN ABOUT 0.5% BY WEIGHT OF HYDROXYL GROUPS. IN ADDITION, THERE IS PROVIDED A VERY EFFECIENT FOAMING AGENT WHICH IS PRODUCED BY ADDING ONE OF THE ABOVE SILICONE RESINS WITH A SELECTED CLASS OF PLASTE ICIZERS, SUCH AS DIOCTYL PHTHALATE.

    Vinyl halide polymer impact modifiers
    4.
    发明授权
    Vinyl halide polymer impact modifiers 失效
    VINYL HALIDE聚合物冲击改性剂

    公开(公告)号:US3793406A

    公开(公告)日:1974-02-19

    申请号:US3793406D

    申请日:1971-11-22

    Applicant: ROHM & HAAS

    Abstract: A FOUR STAGE, SEQUENTIALLY PRODUCED POLYMER COMPRISES (A) A RUBBERY, FIRST STAGE POLYMER FORMED BY EMULSION POLYMERIZATION OF A MONOMER CHARGE TO 70 TO 99.9 WEIGHT PERCENT OF AN ALKYLACRYLATE COMPOUND, 0 T0 30 WEIGHT PERCENT OF A VINYLAROMATIC MONOMER INTERPOLYMERIZABLE THEREWITH, AND 0.1 TO 10 WEIGHT PERCENT OF A POLYFUNCTIONAL CROSS-LINKING MONOMER BASED ON THE WEIGHT OF THE MONOMER CHARGE; (B) A SECOND STAGE POLYMER FORMED BY EMULSION POLYMERIZING IN THE PRESENCE OF THE POLYMER STAGE (A), A SECOND MONOMER CHARGE OF 70 TO 99.9 WEIGHT PERCENT OF A VINYLAROMATIC MONOMER FROM 0 TO 30 WEIGHT PERCENT OF ALKYL ACRYLATE, WHEREIN THE ALKYL GROUP OF THE ALKYL ACRYLATE HAS ABOUT 2 TO 8 CARBON ATOMS, INTERPOLYMERIZABLE THEREWITH, AND 0.1 TO 10 WEIGHT PERCENT OF A SECOND POLYFUNCTIONAL CROSS-LINKING AGENT; (C) A THIRD STAGE POLYMER FORMED BY EMULSION POLYMERIZATION IN THE PRESENCE OF THE STAGE (A) AND STAGE (B) POLYMER PRODUCT, AND COMPRISING 80 T0 100 WEIGHT PERCENT OF AN ALKYL METHACRYLATE, WHEREIN THE ALKYL GROUP HAS ABOUT 1 TO 4 CARBON ATOMS; AND (D) A FOURTH STAGE POLYMER FORMED BY THE EMULSION POLYMERIZATION IN THE PRESENCE OF THE STAGE (A), STAGE (B) AND STAGE (C) POLYMER PRODUCT, AND COMPRISING FROM 80 TO 100 WEIGHT PERCENT OF A VINYL HALIDE. PREFERABLY THE POLYMER IS USED AS A MODIFIER FOR VINYL HALIDE POLYMERS. WHEN SO USED, THE REFRACTIVE INDEX OF STAGE (A) + (B) + (D) IS SUBSTANTIALLY EQUAL TO THE REFRACTIVE INDEX OF THE MODIFIED VINYL HALIDE POLYMER + STAGE (C) OF THE MODIFIER.

    Polymercaptan modified vinyl halide polymers and blends thereof with vinyl halide polymer
    7.
    发明授权
    Polymercaptan modified vinyl halide polymers and blends thereof with vinyl halide polymer 失效
    聚乙烯醇改性聚乙烯醇缩丁醛及其与乙烯基卤化物聚合物的共聚物

    公开(公告)号:US3711576A

    公开(公告)日:1973-01-16

    申请号:US3711576D

    申请日:1970-10-28

    Inventor: HWA J

    Abstract: Vinyl halide polymers which exhibit improved processing characteristics without sacrificing physical properties are prepared by polymerizing vinyl halide monomer in the presence of an aliphatic polymercaptan having at least three mercaptan groups in an amount based on -SH equivalence of from about 0.00015 to about 0.05 equivalence -SH per mole of monomeric material. The monomer is preferably 100 percent vinyl chloride though mixtures containing a predominant amount of vinyl chloride with minor amounts of other ethylenically unsaturated monomers can also be used.

    Abstract translation: 在不牺牲物理性能的情况下显示出改进的加工特性的卤化乙烯聚合物通过在具有至少三个硫醇基团的脂族聚硫醇存在下聚合乙烯基卤单体来制备,其量基于-SH当量为约0.00015至约0.05当量-SH 每摩尔单体材料。 单体优选为100%氯乙烯,但是也可以使用含有主要量的氯乙烯与少量其它烯属不饱和单体的混合物。

    Process for the manufacture of foils and sheets of molding compositions of tactic vinyl chloride homo and/or copolymers
    8.
    发明授权
    Process for the manufacture of foils and sheets of molding compositions of tactic vinyl chloride homo and/or copolymers 失效
    制备化学成分的方法和制备纤维素氯乙烯和/或共聚物的成型组合物的方法

    公开(公告)号:US3689598A

    公开(公告)日:1972-09-05

    申请号:US3689598D

    申请日:1969-10-02

    CPC classification number: C08L27/06 C08L51/04 C08L33/12 C08L55/02 C08L2666/02

    Abstract: Molding composition containing tactic vinyl chloride homo or copolymer and 5 to 25 weight percent of at least one member selected from the group consisting of a binary copolymer of methyl methacrylate and 1 to 20 weight percent of another methacrylate or 1 to 10 weight percent of an acrylate each having an alcoholic moiety of two to 10, preferably two to four, carbon atoms; a graft copolymer of methyl methacrylate, butadiene and styrene; and a graft copolymer of acrylonitrile, butadiene and styrene. This molding composition has improved physical properties as compared to tactic vinyl chloride polymers alone.

    Abstract translation: 含有乳酸氯乙烯均聚物或共聚物的成型组合物和5〜25重量%的选自甲基丙烯酸甲酯和1〜20重量%的其它甲基丙烯酸酯的二元共聚物或1〜10重量%丙烯酸酯中的至少一种 各自具有2至10个,优选2至4个碳原子的醇部分; 甲基丙烯酸甲酯,丁二烯和苯乙烯的接枝共聚物; 和丙烯腈,丁二烯和苯乙烯的接枝共聚物。 与单独的聚合氯化聚合物相比,该模塑组合物具有改善的物理性能。

    Polyvinyl chloride-polymethacrylonitrile interpolymer processing air for polyvinyl chloride
    9.
    发明授权
    Polyvinyl chloride-polymethacrylonitrile interpolymer processing air for polyvinyl chloride 失效
    聚氯乙烯聚氯乙烯嵌段共聚物加工聚氯乙烯空气

    公开(公告)号:US3686363A

    公开(公告)日:1972-08-22

    申请号:US3686363D

    申请日:1969-12-04

    Abstract: Interpolymers especially useful as processing aids for polyvinyl chloride (PVC) are prepared by polymerizing vinyl chloride in the presence of polymethacrylonitrile (PMAN) or by polymerizing methacrylonitrile in the presence of polyvinyl chloride. In a preferred method, a conventional PVC polymerization is halted at or near its completion, unreacted monomer is removed, a minor proportion up to about 50 percent of methacrylonitrile (MAN) monomer, based on the weight of the interpolymer, is added and the reaction continued until the MAN polymerizes. The PVC-PMAN interpolymer recovered from such a system is an effective aid in processing conventional PVC, or it can be used per se since it is readily processable by calendering or extruding.

    Abstract translation: 通过在聚甲基丙烯腈(PMAN)的存在下聚合氯乙烯或通过在聚氯乙烯存在下聚合甲基丙烯腈来制备特别适用于聚氯乙烯(PVC)加工助剂的共聚物。 在优选的方法中,常规PVC聚合在其完成或接近完成时停止,除去未反应的单体,加入基于互聚物重量至多约50%的甲基丙烯腈(MAN)单体的少量比例,反应 持续到MAN聚合。 从这种系统回收的PVC-PMAN互聚物是加工常规PVC的有效帮助,或者它可以自己使用,因为它可以通过压延或挤出而容易地加工。

    Vinyl chloride resin blends
    10.
    发明授权
    Vinyl chloride resin blends 失效
    乙烯氯树脂混合物

    公开(公告)号:US3678132A

    公开(公告)日:1972-07-18

    申请号:US3678132D

    申请日:1970-02-25

    Abstract: Thermoplastic resinous compositions comprising a blend of (1) 20 to 60 percent by weight of vinyl chloride resin and (2) 80 to 40 percent by weight of (A) 40 to 80 percent by weight of a resin prepared by copolymerizing 30 to 80 percent by weight of alpha methylstyrene, 5 to 50 percent by weight of methyl methacrylate, and 3 to 30 percent by weight of acrylonitrile; and (B) 60 to 20 percent by weight of a graft copolymer prepared by graft copolymerization of 65 to 35 percent by weight butadienic polymer and 35 to 65 percent by weight of a monomer mixture of 50 to 80 percent by weight of styrene, 20 to 50 percent by weight of methyl methacrylate, and 0 to 30 percent by weight of acrylonitrile.

    Abstract translation: 热塑性树脂组合物,其包含(1)20至60重量%的氯乙烯树脂和(2)80至40重量%的(A)40至80重量%的通过共聚30-80重量% 的α-甲基苯乙烯,5至50重量%的甲基丙烯酸甲酯和3至30重量%的丙烯腈; 和(B)60〜20重量%的接枝共聚物,其通过接枝共聚65〜35重量%的异丁烯聚合物和35〜65重量%的50〜80重量%的苯乙烯的单体混合物,20〜 50重量%的甲基丙烯酸甲酯和0至30重量%的丙烯腈。

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