Laminated glazing unit comprising copolymers of vinyl chloride,

Details Laminated glazing unit comprising copolymers of vinyl chloride, Laminated glazing unit comprising copolymers of vinyl chloride,

1997-03-21

1999-01-12

Smith, Jeffery T.

Stock material or miscellaneous articles

Composite

Of quartz or glass

428442, B32B 1710

Patent

active

058585427

ABSTRACT:
An improved method is provided for copolymerizing vinyl chloride with allyl glycidyl ether and a vinyl ester. The copolymers so formed include 70-99 weight % of vinyl chloride, 0.05-15 weight % of allyl glycidyl ether, and 0.05-15 weight % of a vinyl ester, preferably vinyl acetate. The copolymers of this invention can be compounded to provide films exhibiting improved heat stability, low haze, and good adhesion to solid surfaces such as glass and metal. The compounded resins thus obtained may be especially advantageously used in forming the interlayer of laminated safety glazings, such as vehicle windshields and architectural glazings.

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