Acrylic polymers solutions for use in forming a membrane for cur

Details Acrylic polymers solutions for use in forming a membrane for cur Acrylic polymers solutions for use in forming a membrane for cur

1980-04-04

1985-03-26

Wong, Jr., Harry

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

428522, 526240, 526287, 526311, 526312, C08F21208, C08F22016, C08F22064

Patent

active

045074542

ABSTRACT:
An addition polymer is disclosed, the utility being to apply the same as a film to a hydraulic cement-containing article prior to curing, such as concrete, asbestos-cement shingles and the like, for example, to prevent moisture loss during the early hardening period. The polymers are formed of about 10 to 50 percent by weight of an ester of acrylic or methacrylic acid, the alcohol moiety of which has from 12 to about 20 carbon atoms, about 40 to 89.5 percent by weight of a vinyl aromatic monomer, and about 0.5 to 5 percent of a copolymerizable ethylenically unsaturated carboxylic acid, vinyl sulfonic acid, or salts thereof, preferably 15 to 30 percent of the ester, 69 to 84 percent of the vinyl aromatic material, and 1 to 3 percent of the unsaturated acid. In addition to use on concrete, the materials are useful for application to asbestos-cement shingles, prior to curing, and other similar uses. The preferred vinyl aromatic compound is styrene or vinyl toluene, and the preferred acid is itaconic acid, acrylic acid, or methacrylic acid.

REFERENCES:
patent: 2971935 (1961-02-01), Floria
patent: 3725122 (1973-04-01), Reinhard et al.
patent: 3879357 (1975-04-01), Wingler et al.
patent: 4021504 (1977-05-01), Conrad et al.
patent: 4137389 (1979-01-01), Wingler et al.
patent: 4177178 (1979-12-01), Das et al.

Affiliated with

Also associated with

Rating

Acrylic polymers solutions for use in forming a membrane for cur does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acrylic polymers solutions for use in forming a membrane for cur, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acrylic polymers solutions for use in forming a membrane for cur will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1294812