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Patent Searching and Data


Title:
DRY-PEELABLE TEMPORARY PROTECTIVE COATINGS
Document Type and Number:
WIPO Patent Application WO2003029372
Kind Code:
A3
Abstract:
A dry-strippable coating composition can be incorporated into a composite article and comprises a dried water-borne polyurethane dispersion including a release additive comprising a releasing co-solvent or other selected release material. When water is removed from the polyurethane dispersion of the composite article and when the article comprises a thermoformable substrate, the article can be thermoformed to provide a shaped article. Dry-stripping the coating composition from the substrate provides a thermoformed protective layer. The dry-strippable coatings provide temporary protection for the surface of various products and components during manufacture, assembly, shipping, installation, painting, and refinishing operations.

Inventors:
KREPSKI LARRY R
LEWANDOWSKI KEVIN M
MICKUS DANIEL E
ROWEN SUSAN K
JOHNSON STEPHEN A
Application Number:
PCT/US2002/030382
Publication Date:
February 19, 2004
Filing Date:
September 25, 2002
Export Citation:
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Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
B05D5/00; B05D7/24; C09D5/20; C09D175/04; C09D191/06; G02B27/14; (IPC1-7): C09D5/00; C09D175/04; C08K5/053
Foreign References:
US6001906A1999-12-14
US5739191A1998-04-14
US5965195A1999-10-12
Other References:
DATABASE WPI Week 5300, Derwent World Patents Index; AN 2000-567896, XP002228840, "Environmentally friendly releasable water-based compositions"
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