Polyvinylbutyral of reduced tackiness and improved tensile stren

Details Polyvinylbutyral of reduced tackiness and improved tensile stren Polyvinylbutyral of reduced tackiness and improved tensile stren

1985-08-06

1988-06-14

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08F 800

Patent

active

047512660

ABSTRACT:
Polyvinylbutyral of reduced tackiness and improved tensile strength is prepared by acetalization of polyvinyl alcohol, which is capable of association, in the associated state with n-butyraldehyde in aqueous phase in the presence of an acid catalyst. In the process for its preparation from more highly saponified, associated polyvinyl alcohol having a vinyl acetate unit content of less than 1% by weight, the acetalization is started preferably at temperatures below 20.degree. C. and the temperature is raised to above 40.degree. C. in the course of the reaction. Use for the production of plasticized thermoplastic polyvinylbutyral films and use of the latter as the joining layer in laminated glass.

REFERENCES:
patent: 3153009 (1964-10-01), Rombach
patent: 3926918 (1975-12-01), Shibata et al.
patent: 4205146 (1980-05-01), Hermann
patent: 4452935 (1984-06-01), Nomura et al.
"Production and Properties of Aqueous Polyvinyl Alcohol Solutions"; Harreus et al.; pp. 24-30; Sep. 1983.

Affiliated with

Also associated with

Rating

Polyvinylbutyral of reduced tackiness and improved tensile stren does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyvinylbutyral of reduced tackiness and improved tensile stren, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyvinylbutyral of reduced tackiness and improved tensile stren will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-505546