Process for the production of polychloroprene latices rich in solid
matter
    2.
    发明授权
    Process for the production of polychloroprene latices rich in solid matter 失效
    生产含固体物质的聚氯丁二烯胶乳的方法

    公开(公告)号:US4338238A

    公开(公告)日:1982-07-06

    申请号:US201760

    申请日:1980-10-29

    CPC分类号: C08F36/18

    摘要: A process for polymerizing chloroprene which may contain as much as 50% by weight of a copolymerizable monomer, in an alkaline aqueous emulsion, of which the alkali ions at least partially consist of potassium, into a latex rich in solid matter having a solid content of from 50 to 65% by weight in the presence of an alkali salt of disproportionated abietic acid and a formaldehyde condensate with naphthalene sulphonic acid and also an alkali hydroxide, whereby polymerization is carried out until there is a conversion of more than 90% characterized in that(a) the aqueous phase contains from 2.8 to 3.8 parts by weight of an alkali salt of disproportionated abietic acid, from 0.3 to 2.0 parts by weight of a formaldehyde condensate of a naphthalene sulphonic acid and from 0.25 to 0.75 parts by weight of an alkali phosphate and/or polyphosphate, based on 100 parts by weight of monomer, and(b) polymerization is initiated using formamidine sulphinic acid.

    摘要翻译: 聚合氯丁二烯的方法,其可以含有多达50重量%的可共聚单体,其碱性离子至少部分由钾组成的碱性水性乳液成为富含固体成分的胶乳,其固体含量为 在歧化松香酸的碱金属盐和萘磺酸的甲醛缩合物以及碱金属氢氧化物的存在下,从50至65重量%,由此进行聚合直到转化率大于90%,其特征在于, (a)水相含有2.8至3.8重量份歧化松香酸的碱金属盐,0.3至2.0重量份的萘磺酸的甲醛缩合物和0.25至0.75重量份的碱 磷酸盐和/或多磷酸盐,基于100重量份的单体,和(b)使用甲脒亚磺酸引发聚合。

    Process for the production of synthetic rubber latices, their use as a
starting material in the production of pressure-sensitive adhesives and
pressure-sensitive adhesives
    3.
    发明授权
    Process for the production of synthetic rubber latices, their use as a starting material in the production of pressure-sensitive adhesives and pressure-sensitive adhesives 失效
    用于生产合成橡胶胶乳的方法,它们用作生产压敏粘合剂和压敏粘合剂的起始原料

    公开(公告)号:US4445959A

    公开(公告)日:1984-05-01

    申请号:US378278

    申请日:1982-05-14

    CPC分类号: C09J113/02 C08F236/04

    摘要: A process for the production of synthetic rubber latices by the emulsion polymerization of a monomer mixture of:40 to 80 parts by weight of a conjugated diene;0 to 45 parts by weight of an aromatic vinyl compound;0 to 30 parts by weight of (meth)acrylonitrile0 to 30 parts by weight of a (meth)acrylic acid ester containing from 1 to 12 carbon atoms in the alcohol component or other copolymerizable compounds, and0.5 to 5.0 parts by weight of an .alpha., .beta.-unsaturated mopnocarboxylic or dicarboxylic acid,the sum of the monomer compounds amounting to 100 parts by weight, characterized in that from 0.5 to 2.0 parts by weight of a chain transfer agent are used per 100 parts by weight of monomer. Said latices can be used for producing pressure-sensitive adhesives.

    摘要翻译: 通过单体混合物的乳液聚合制备合成橡胶胶乳的方法:40至80重量份的共轭二烯; 0〜45重量份的芳族乙烯基化合物; 0〜30重量份的(甲基)丙烯腈0〜30重量份的醇成分中含有1〜12个碳原子的(甲基)丙烯酸酯或其他可共聚合的化合物,以及0.5〜5.0重量份 α,β-不饱和羧酸或二羧酸,单体化合物的总量为100重量份,其特征在于每100重量份单体使用0.5至2.0重量份的链转移剂。 所述胶乳可用于生产压敏粘合剂。

    Process for the polymerization of chloroprene
    4.
    发明授权
    Process for the polymerization of chloroprene 失效
    氯丁二烯聚合方法

    公开(公告)号:US4417036A

    公开(公告)日:1983-11-22

    申请号:US356019

    申请日:1982-03-08

    CPC分类号: C08F36/18

    摘要: High-solids polychloroprene latices are obtained by polymerizing chloroprene, which may contain up to 50%, by weight, of a copolymerizable monomer, in aqueous alkaline emulsion containing emulsifiers and other conventional auxiliaries in the presence of from 0.1 to 2%, by weight, of a primary or secondary hydroxyalkylamine in which the OH-group is separated from the amino nitrogen atom by at least two carbon atoms, polymerization being carried out to a conversion of more than 80%.

    摘要翻译: 高固含量聚氯丁二烯胶乳通过聚合氯丁二烯得到,该氯丁二烯可以含有至多50重量%的可共聚单体,在含有0.1至2重量%乳化剂和其它常规助剂的含水碱性乳液中, 的羟基烷基胺,其中OH基与氨基氮原子分开至少两个碳原子,聚合进行至大于80%的转化率。

    Thermoplastic PVC resin compositions
    7.
    发明授权
    Thermoplastic PVC resin compositions 失效
    热塑性PVC树脂组合物

    公开(公告)号:US4144286A

    公开(公告)日:1979-03-13

    申请号:US780128

    申请日:1977-03-22

    摘要: Thermoplastic moulding compositions of 20 to 90% by weight of polyvinyl chloride and, accordingly, 10 to 80% by weight of a mixture of(1) 20 to 100% by weight of a thermoplastic resin which is a copolymer of 30 to 40 parts by weight of .alpha.-methyl styrene, 52 to 62 parts by weight of methyl methacrylate and 4 to 14 parts by weight of acrylonitrile, and(2) 0 to 80% by weight of a graft polymer of 40 to 60 parts by weight of a monomer mixture of styrene (40 to 60 parts by weight), acrylonitrile (0 to 10 parts by weight) and methyl methacrylate (40 to 50 parts by weight), on 40 to 60 parts by weight of polybutadiene or butadiene/styrene copolymer containing up to 30% by weight of copolymerized styrene.

    摘要翻译: 热塑性成型组合物为20〜90重量%的聚氯乙烯,因此为10〜80重量%的(1)20〜100重量%的30〜40重量份的共聚物的热塑性树脂重量的混合物 α-甲基苯乙烯的重量,52至62份甲​​基丙烯酸甲酯重量份和4至14份重量份的丙烯酸酯,和(2)按重量单位为40至60份的聚酰胺重量的0至80% 苯乙烯混合物(重量份为40至60份),丙烯腈(0至10份重量份)和甲基丙烯酸甲酯(40至50份重量份),40至60份重量份的聚丁二烯或二苯乙烯/苯乙烯共聚物,含至 30%由共聚苯乙烯的重量。

    Continuous polymerization of chloroprene
    10.
    发明授权
    Continuous polymerization of chloroprene 失效
    氯丁二烯的连续聚合

    公开(公告)号:US4521576A

    公开(公告)日:1985-06-04

    申请号:US556580

    申请日:1983-11-30

    CPC分类号: C08F36/18

    摘要: A process for the production of storable polychloroprene having reduced tackiness on mixing rolls by the continuous polymerization of chloroprene and, optionally, up to 50%, by weight, of a monomer copolymerizable with chloroprene in aqueous alkaline emulsion in the presence of emulsifiers and radical initiators at temperatures of from 0.degree. to 70.degree. C., followed by isolation, characterized in that from 90 to 150 parts, by weight, of water, from 2.5 to 4.0 parts, by weight of a potassium salt of disproportionated abietic acid (based on acid), from 0.3 to 1.0 parts, by weight, of a condensation product of naphthalene sulphonic acid and formaldehyde and from 0.2 to 1.5 parts, by weight, of potassium hydroxide, all the quantities being based on 100 parts, by weight, of monomer, are used for the polymerization reaction.

    摘要翻译: 在乳化剂和自由基引发剂的存在下,通过连续聚合氯丁二烯和任选地至多50重量%的可与氯丁二烯共聚的单体在水性碱性乳液中连续聚合制备具有降低的混合辊粘性的方法 在0℃至70℃的温度下,然后分离,其特征在于,90至150重量份的水,2.5至4.0重量份歧化松香酸钾盐(基于 酸),0.3至1.0重量份的萘磺酸和甲醛的缩合产物和0.2至1.5重量份的氢氧化钾,所有量基于100重量份的单体 ,用于聚合反应。