Water borne pressure sensitive adhesive compositions derived from copolymers of higher vinyl esters
    7.
    发明授权
    Water borne pressure sensitive adhesive compositions derived from copolymers of higher vinyl esters 有权
    由高级乙烯基酯的共聚物衍生的水性压敏粘合剂组合物

    公开(公告)号:US06426151B1

    公开(公告)日:2002-07-30

    申请号:US09243776

    申请日:1999-02-03

    IPC分类号: B32B2708

    摘要: The present invention is directed to improved flexibilized, plasticized polyvinyl chloride films bonded with a substrate by means of an aqueous based pressure sensitive acrylic adhesive emulsion polymers. Conventional emulsion based pressure sensitive adhesives were comprised of a copolymer comprised of polymerized units of acrylic esters and ethylenically unsaturated monomers, the copolymer having a Tg of from −15 to −70° C. The improvement in the aqueous based, emulsion polymerized pressure sensitive adhesives resides in the incorporation of polymerized units of a vinyl C8-13 ester of a neo-acid into the adhesive. The vinyl ester is formed from a mixture of propylene oligomers and such vinyl ester is represented by the chemical formula: C8-13H7-27CO2CH═CH2. Preferably, the adhesive includes units of methyl methacrylate, butyl acrylate of 2-ethylhexyl acrylate and a carboxylic acid selected from acrylic acid or methacrylic acid.

    摘要翻译: 本发明涉及通过基于水性的压敏丙烯酸粘合剂乳液聚合物与基材结合的改进的柔性增塑的聚氯乙烯膜。 常规的基于乳液的压敏粘合剂由包含丙烯酸酯和烯键式不饱和单体的聚合单元的共聚物组成,共聚物的Tg为-15至-70℃。水性乳液聚合压敏粘合剂的改进 存在于将新酸的乙烯基C8-13酯的聚合单元并入粘合剂中。 乙烯基酯由丙烯低聚物的混合物形成,这种乙烯基酯由下列化学式表示:C8-13H7-27CO2CH = CH2。 优选地,粘合剂包括甲基丙烯酸甲酯,丙烯酸2-乙基己酯的丙烯酸丁酯和选自丙烯酸或甲基丙烯酸的羧酸的单元。

    Nonwoven binder emulsions of vinyl acetate/ethylene copolymers having
improved solvent resistance
    8.
    发明授权
    Nonwoven binder emulsions of vinyl acetate/ethylene copolymers having improved solvent resistance 失效
    具有改善的耐溶剂性的乙酸乙烯酯/乙烯共聚物的无纺粘合剂乳液

    公开(公告)号:US4698384A

    公开(公告)日:1987-10-06

    申请号:US831015

    申请日:1986-02-19

    申请人: Chung-Ling Mao

    发明人: Chung-Ling Mao

    IPC分类号: C08F2/16 C08F218/08

    CPC分类号: C08F218/08

    摘要: A copolymer emulsion for bonding nonwoven products comprising an aqueous medium having colloidally dispersed therein a copolymer consisting essentially of vinyl acetate, 5-35 wt % ethylene and 2 to 10 wt % of an amide functional crosslinking comonomer which is N-methylolacrylamide or a compound of the formula R--NH--(CH.sub.2).sub.n --CH(OR').sub.2 where R is (meth)acryloyl, R' is a C.sub.1 -C.sub.4 alkyl group and n is 3 or 4, the copolymer emulsion prepared in the presence of 0.1 to 1 wt % polyvinyl pyrrolidone, based on vinyl acetate in the copolymer. Such emulsion binder copolymers demonstrate improved solvent resistance.

    摘要翻译: 一种用于粘合非织造产品的共聚物乳液,其包含胶体分散在其中的水性介质,所述共聚物乳液基本上由乙酸乙烯酯,5-35重量%乙烯和2-10重量%的作为N-羟甲基丙烯酰胺的酰胺官能交联共聚单体组成的共聚物或 式R-NH-(CH2)n-CH(OR')2其中R是(甲基)丙烯酰基,R'是C1-C4烷基,n是3或4,在0.1的存在下制备的共聚物乳液 至1重量%的聚乙烯吡咯烷酮,基于共聚物中的乙酸乙烯酯。 这种乳液粘合剂共聚物显示出改善的耐溶剂性。