EVA polymers for use as beater saturants
    1.
    发明授权
    EVA polymers for use as beater saturants 失效
    EVA聚合物用作打浆机饱和剂

    公开(公告)号:US5565062A

    公开(公告)日:1996-10-15

    申请号:US507267

    申请日:1990-04-10

    CPC classification number: D21H17/42 D04H1/587 D04H1/64 D21H17/34

    Abstract: A beater saturation process for forming a nonwoven wet laid composite is provided which comprises the following steps:(I) providing an aqueous dispersion comprising:(a) 10 to 95% by weight of a water-dispersible, but water-insoluble fiber;(b) 0 to 80% by weight of a finely divided, substantially water-insoluble, non-fibrous, inorganic filler;(c) 5 to 50% by weight of an anionically charged emulsion polymer comprising 70 to 90% by weight of a vinyl ester of an alkanoic acid; 10 to 30% by weight ethylene, 0 to 70% by weight of a C.sub.2 -C.sub.8 alkyl acrylate, and 0 to 4% by weight of an anionic functional monomer,(II) colloidally destabilizing the resulting mixture to form a fibrous agglomerate in aqueous suspension;(III) distributing and draining the aqueous suspension on a porous substrate such as a wire to form a wet web; and(IV) drying the web.

    Abstract translation: 提供了用于形成非织造湿法复合材料的搅拌器饱和方法,其包括以下步骤:(I)提供水分散体,其包含:(a)10至95重量%的水分散性但水不溶性纤维; (b)0至80重量%的细分,基本上不溶于水的非纤维状无机填料; (c)5至50重量%的阴离子电荷的乳液聚合物,其包含70至90重量%的链烷酸的乙烯基酯; 10至30重量%的乙烯,0至70重量%的C 2 -C 8烷基丙烯酸酯和0至4重量%的阴离子官能单体,(II)使所得混合物胶体化不稳定以在水溶液中形成纤维附聚物 悬挂; (III)将水性悬浮液分散和排出在多孔基材如丝线上以形成湿网; 和(IV)干燥网。

    Woodworking adhesives based on multistage emulsion polymer
    4.
    发明授权
    Woodworking adhesives based on multistage emulsion polymer 失效
    基于多级乳液聚合物的木工粘合剂

    公开(公告)号:US5439960A

    公开(公告)日:1995-08-08

    申请号:US300832

    申请日:1994-09-02

    CPC classification number: C09J151/003 C08F263/04

    Abstract: A woodworking adhesive composition prepared by a two stage emulsion polymerization procedure wherein the first stage comprises the step of emulsion polymerizing vinyl acetate with 0.1 to 6% by weight of a post-crosslinking monomer in the presence of polyvinyl alcohol to produce a polyvinyl alcohol stabilized copolymer having a Tg within the range of +10.degree. to +40.degree. C. and containing no pre-crosslinking monomers and the second stage comprises the step of emulsion polymerizing methyl methacrylate to produce a methyl methacrylate homo- or copolymer containing at least 75% by weight methyl methacrylate and having a Tg within the range of +50.degree. to +120.degree. C., further characterized in that the ratio of the polymer produced in the first stage to the polymer produced in the second stage is within the range of 10:1 to 10:6 and wherein the first stage polymer and second stage monomer mixture are not equilibrated prior to the second stage polymerization.

    Abstract translation: 通过两阶段乳液聚合方法制备的木工粘合剂组合物,其中第一阶段包括在聚乙烯醇存在下将乙酸乙烯酯与0.1至6重量%的后交联单体乳液聚合以产生聚乙烯醇稳定的共聚物 Tg在+ 10℃至+ 40℃的范围内,并且不含预交联单体,第二阶段包括将甲基丙烯酸甲酯乳液聚合以产生甲基丙烯酸甲酯均聚物或共聚物的步骤,所述甲基丙烯酸甲酯均聚物或共聚物含有至少75% 重量的甲基丙烯酸甲酯,其Tg在+ 50℃至+ 120℃的范围内,其特征还在于,在第一阶段中生产的聚合物与在第二阶段中生产的聚合物的比率在10: 1至10:6,并且其中第一阶段聚合物和第二阶段单体混合物在第二阶段聚合之前未平衡。

    Textile coatings based on eva-maleate copolymers
    7.
    发明授权
    Textile coatings based on eva-maleate copolymers 失效
    基于eva-马来酸酯共聚物的纺织涂料

    公开(公告)号:US4740394A

    公开(公告)日:1988-04-26

    申请号:US905351

    申请日:1986-09-08

    Applicant: Paul R. Mudge

    Inventor: Paul R. Mudge

    Abstract: Woven pile fabrics, particularly upholstery fabrics and corduroy, characterized by a superior balance of strength and softness are back-coated utilizing an aqueous emulsion prepared by the emulsion polymerization of a vinyl ester of an alkanoic acid interpolymerized with 10 to 30% by weight ethylene; 15 to 40% by weight of a C.sub.4 -C.sub.10 dialkyl maleate; to 5% by weight of copolymerizable N-methylol containing monomer; 0 to 4% by weight of an olefinically unsaturated carboxylic acid and 0 to 1% by weight of a polyethylenically unsaturated comonomer.

    Abstract translation: 使用通过与10〜30重量%的乙烯共聚的链烷酸的乙烯基酯的乳液聚合制备的水性乳液,对织造的绒毛织物,特别是室内装饰织物和灯芯绒,其特征在于强度和柔软性的优异平衡。 15至40重量%的C 4 -C 10马来酸二烷基酯; 至5重量%的可共聚的含N-羟甲基的单体; 0至4重量%的烯属不饱和羧酸和0至1重量%的多烯属不饱和共聚单体。

    Woodworking adhesives based on multistage emulsion polymer

    公开(公告)号:US5391608A

    公开(公告)日:1995-02-21

    申请号:US116319

    申请日:1993-09-03

    CPC classification number: C09J151/003 C08F263/04

    Abstract: A woodworking adhesive composition prepared by a two stage emulsion polymerization procedure wherein the first stage comprises the step of emulsion polymerizing vinyl acetate with 0.1 to 6% by weight of a post-crosslinking monomer in the presence of polyvinyl alcohol to produce a polyvinyl alcohol stabilized copolymer having a Tg within the range of +10.degree. to +40.degree. C. and containing no pre-crosslinking monomers and the second stage comprises the step of emulsion polymerizing methyl methacrylate to produce a methyl methacrylate homo- or copolymer containing at least 75% by weight methyl methacrylate and having a Tg within the range of +50.degree. to +120.degree. C., further characterized in that the ratio of the polymer produced in the first stage to the polymer produced in the second stage is within the range of 10:1 to 10:6 and wherein the first stage polymer and second stage monomer mixture are not equilibrated prior to the second stage polymerization.

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