Binders for flooring adhesives
    14.
    发明授权

    公开(公告)号:US10344190B2

    公开(公告)日:2019-07-09

    申请号:US15326369

    申请日:2015-07-13

    Applicant: BASF SE

    Abstract: The present invention relates to a polymer dispersion comprising A) at least one first phase comprising a) at least one chain growth addition polymer P constructed from 1 to 99.9 wt % of at least one ester from ethylenically unsaturated monomers, as monomer A, 0 to 20 wt % of at least one ethylenically unsaturated carbonitrile, as monomer B, 0.1 to 5 wt % of at least one acid-functional ethylenically unsaturated monomer, as monomer C, 0 to 5 wt % of at least one monomer which, alone or with a crosslinking agent, has crosslinking effect and which is different from the monomers A to C, as monomer D, 0 to 20 wt % of at least one ethylenically unsaturated monomer which forms a chain growth addition homopolymer having a glass transition temperature ≥50° C. and which is different from the monomers A to D, as monomer E, the sum of the total amount of the monomers A to E making 100 wt %, a1) optionally at least one polymer seed, b) 10 to 60 parts by weight, based on 100 parts by weight of polymer P, of at least one saccharide compound S, and B) a second phase comprising c) at least one solvent. The present invention also relates to a method for producing the polymer dispersion of the invention, to a polymerization powder, to an adhesive bonding formulation comprising the polymer dispersion of the invention, and to the use of the formulation of the invention as an adhesive.

    Process for preparing aqueous polymer dispersions for adhesives
    15.
    发明授权
    Process for preparing aqueous polymer dispersions for adhesives 有权
    制备胶粘剂水性聚合物分散体的方法

    公开(公告)号:US09574077B2

    公开(公告)日:2017-02-21

    申请号:US14987394

    申请日:2016-01-04

    Applicant: BASF SE

    Abstract: The present invention relates to aqueous polymer dispersions having a polymer content of at least 55% by weight that are suitable for pressure sensitive adhesives. The invention also relates to a process for preparing these aqueous polymer dispersions and also to the use of the aqueous polymer dispersions in pressure sensitive adhesives and, respectively, pressure sensitive adhesive compositions, especially in pressure sensitive adhesives for transparent substrates, such as plastics labels. The aqueous polymer dispersions have a polymer content of at least 55% by weight, based on the total weight of the dispersion, the polymer being composed of ethylenically unsaturated monomers M and having a glass transition temperature below −10° C., in which the dispersed polymer particles have a polymodal particle size distribution, in which at least 70% by weight have a particle diameter of below 350 nm.

    Abstract translation: 本发明涉及聚合物含量为至少55重量%的聚合物分散体,其适用于压敏粘合剂。 本发明还涉及一种制备这些含水聚合物分散体的方法,还涉及使用压敏粘合剂中的聚合物水分散体和压敏粘合剂组合物,特别是用于透明基材例如塑料标签的压敏粘合剂。 聚合物水分散体的聚合物含量至少为55重量%,基于分散体的总重量,聚合物由烯键式不饱和单体M组成并具有低于-10℃的玻璃化转变温度,其中 分散的聚合物颗粒具有多晶粒度分布,其中至少70重量%的粒径小于350nm。

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