Laminated safety glass and polymeric laminate for use therein

Details Laminated safety glass and polymeric laminate for use therein Laminated safety glass and polymeric laminate for use therein

1988-12-05

1990-08-28

Buffalow, Edith

Stock material or miscellaneous articles

Composite

Of polyamidoester

4284231, 4284237, 4284247, 4284253, 428430, 428437, 428480, B32S 2700

Patent

active

049524577

ABSTRACT:
A polymeric laminate for use with a glass layer in a laminated bilayer or anti-lacerative shield application comprises a first layer of moisture tolerant plasticized polyvinyl butyral containing (a) adhesion control agent(s) and (b) residual hydroxyl content which optimize glass adhesion and optical performance over a range of moisture contents in the first layer likely to be encountered in use, i.e. 0.2 to 0.5 weight % and 2 to 2.8 weight %, such first layer being in face to face contact with a second layer of a clear polymer film or coating having a combination of performance properties desirable for these applications. Preferred second layers are biaxially stretched polyester and thermoset aliphatic polyurethane.

REFERENCES:
patent: 3271235 (1966-09-01), Lavin et al.
patent: 3458388 (1969-07-01), Moynihan
patent: 3816201 (1974-06-01), Armstrong et al.
patent: 4072779 (1978-02-01), Knox et al.
patent: 4584229 (1986-04-01), Bourelier et al.
patent: 4643944 (1987-02-01), Agethen et al.

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