Redispersible waterborne pressure sensitive adhesive polymer

Details Redispersible waterborne pressure sensitive adhesive polymer Redispersible waterborne pressure sensitive adhesive polymer

1993-04-21

1994-06-07

Michl, Paul R.

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...

524377, 524457, C08K 506, C08J 302

Patent

active

053190203

ABSTRACT:
This invention is an emulsion polymer for use as a redispersible pressure sensitive adhesive and a process for making the emulsion polymer. The polymer is the emulsion polymerization reaction product of one or more neutralized ethylenically unsaturated carboxylic acid monomers, one or more alkyl acrylates or methacrylates, and optionally, one or more vinyl containing monomers. The carboxylic acid functionality is either neutralized before initiation of polymerization, concurrently with the polymerization, or partially before and partially during polymerization. The polymerization occurs in the presence of a polyalkylene oxide plasticizer, having a molecular weight greater than 3000. In other embodiments, the invention is the water redispersible pressure sensitive adhesive made with the polymer, and a repulpable substrate made with the polymer.

REFERENCES:
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patent: 3661874 (1972-05-01), Olson
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patent: 5183841 (1993-02-01), Bernard
patent: 5299447 (1993-07-01), Miyajima et al.
Adhesives Age, Sept. 1991, Roland R. Milker, et al., 30-37, Repulpable Splicing Tapes Help Meet Environmental Concerns.

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