Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1995-02-03
1997-06-03
Loney, Donald
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428167, 428141, 428409, 428419, 4284231, 4284242, 4284251, 4284256, 4284744, 4284752, 4284793, 428480, 428481, B32B 300
Patent
active
056352786
ABSTRACT:
A film that exhibits increased scratch resistant characteristics. The film is formed from a layer of crosslinkable oligomeric resin composition on a base. The film is made by: forming the layer of crosslinkable oligomeric resin composition on the base, and curing the resin composition to an extent that the film exhibits a haze decrease of less than or equal to 60 percent after abrading according to the ASTM D-968-81 procedure using 200 milliliters of sand. Preferably, the layer has a microstructure of alternating tips and grooves. Such films are useful in backlit displays which are useful in computers and the like.
REFERENCES:
patent: 4262072 (1981-04-01), Wendling et al.
patent: 4340276 (1982-07-01), Maffitt et al.
patent: 4542449 (1985-09-01), Whitehead
patent: 5120569 (1992-06-01), Zupancic et al.
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Derwent Patent Abstract, SectionCH, Week 8512, Derwent Publications Ltd., London, GB, Class A32, AN 85-071606 XP002004064 & JP 60 025 710, Feb. 1985.
ASTM D-882-91, "Standard Test Methods for Tensile Properties of Thin Plastic Sheeting".
ASTM D-968-81, "Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive".
Griswold Gary L.
Jordan Robert H.
Kirn Walter N.
Loney Donald
Minnesota Mining and Manufacturing Company
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