Polyurethane layer possessing energy-absorbing properties and its use in safety glass
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 13, 1991
Grant Date -
N/A
app pub date -
Mar 20, 1990
filing date -
Mar 20, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A polyurethane-based sheet of high optical quality having energy-absorbing properties, obtained by the reactive pouring or spraying, on a flat, horizontal base, of a reactive mixture of an isocyanate component and a polyhydric alcohol component is disclosed. The ratio of the NCO equivalent isocyanate groups to the OH equivalent groups used in approximately equal to 1. The isocyanate component comprises a mixture of 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate (isocyanate I) and bis-4-isocyanatocyclohexylmethane (isocyanate II), in a proportion of an isocyanate (I) NCO equivalent of 0.1 to 0.8, and of an isocanate (II) NCO equivalent, with the total NCO equivalent being about 1. The layer according to the invention is used in laminated glass containing at least one sheet of glass and one layer of a plastic material.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully