Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1992-06-24
1994-05-03
Reddick, Judy M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524459, 525123, C08L 2904
Patent
active
053089103
ABSTRACT:
There is disclosed a composition which comprises an aqueous emulsion selected from (A-1) aqueous emulsion comprising a dispersoid which comprises a vinyl ester polymer (1) and a copolymer a (meth)acrylic ester and a primary hydroxyl group-containing ethylenically unsaturated monomer (2), the polymer (1) being present principally in the central part of the dispersoid, the copolymer (2) having a glass transition temperature of lower than 50.degree. C. an being present principally in the peripheral part thereof; and a dispersant comprising a vinyl alcohol polymer and (A-2) aqueous emulsion comprising a dispersoid which comprises a copolymer of a hydrophobic unsaturated monomer such as (meth)acrylic ester and a primary hydroxyl group-containing ethylenically unsaturated monomer; and a dispersant comprising a vinyl alcohol polymer having a mercapto group at an end thereof and a (B) polyvalent isocyanate compound. Disclosed also are an adhesive comprising the aforementioned composition and a wooden product which is joined by the use of the adhesive. The above-disclosed adhesive is excellent in initial adhesivity, adhesive strength, water resistance and so forth.
REFERENCES:
patent: 3931088 (1976-01-01), Sakurada et al.
patent: 4609690 (1986-09-01), Gruber et al.
patent: 4767816 (1988-08-01), Iacoviello et al.
patent: 5092953 (1992-03-01), Derby et al.
Hattori Tatsuaki
Maruyama Hitoshi
Nakamae Masato
Yuki Ken
Kuraray Co. Ltd.
Reddick Judy M.
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