Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUST100701 I4
Publication typeGrant
Application numberUS 06/188,123
Publication dateJun 2, 1981
Filing dateSep 17, 1980
Priority dateSep 17, 1980
Publication number06188123, 188123, US T100701 I4, US T100701I4, US-I4-T100701, UST100701 I4, UST100701I4
InventorsErich Kuehn
Original AssigneeIci Americas Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
In-mold coating compositions containing non-functional liquid copolymers and free isocyanate containing compounds
US T100701 I4
Abstract
Fully cured reinforced molded resins such as polyester, polyurea urethane, polyurea, polyurethane, polyisocyanurate, polyepoxy and polycarbonate resins can be in-mold coated to cover surface defects such as sink marks and microcracks with an improved coating composition comprising 5-94% by weight of an ethylenically unsaturated base resin free of groups reactive with isocyanate radicals; 5-94% by weight of an ethylenically unsaturated monomer free of groups reactive with isocyanate radicals and 1-20% by weight of isocyanate containing compounds or compounds which decompose to form free isocyanate containing compounds. Such coatings unexpectedly have improved adherence to molded articles over similar compositions which contain no free isocyanate. Such coatings exhibit excellent adhesion and when subjected to the standard adhesion test ASTM D3359-74 are graded from 3-5 and when subjected to the GM"X" adhesion test are graded from 8 through 10.
Typical formulations consist of 35% vinyl terminated polyester urethane resins, vinyl terminated polyisocyanurate resins, and vinyl terminated polyester resins all of which are free of groups reactive with isocyanate radical; 45% styrene; and 2-5% polyphenyl methane polyisocyanate having 2.7 --NCO groups per molecule with minor amounts of emulsifiers, fillers, catalysts, cross-linking agents, dryers and pigments. Such coatings when containing electroconductive fillers can be painted by standard electrostatic paint techniques.
Images(1)
Previous page
Next page
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5885662 *Jan 31, 1997Mar 23, 1999Atoma International, Inc.Decorative automotive interior trim articles with integral light stable polyurethane elastomer covering and process for making the same
US6013210 *Apr 17, 1998Jan 11, 2000Magna Interior Systems Inc.Process for making decorative automotive interior trim articles with cast integral light stable covering
US6017617 *Dec 15, 1998Jan 25, 2000Atoma International, Inc.Demolded composite comprising rigid reinforcing substrate joined to inner layer of polyurethane interfacially reacted while still in mold with backside of molded, heat crosslinked polyurethane outer layer
US6210614Jun 9, 1998Apr 3, 2001Atoma International Inc.Process of making decorative automotive interior trim articles with cast integral light-stable covering containing invisible tear seam
US6544449May 21, 1999Apr 8, 2003Magna Interior Systems Inc.Process for making decorative automotive interior trim articles with integral in-mold coated polyurethane aromatic elastomer covering
US6656596Nov 23, 1999Dec 2, 2003Magna Interior Systems Inc.Decorative automotive interior trim articles with cast integral light stable covering and process for making the same
US6958190Oct 1, 2003Oct 25, 2005Magna Interior Systems Inc.Decorative automotive interior trim articles with cast integral light stable covering and process for making the same
Classifications
U.S. Classification428/422.8, 252/500, 428/425.6, 428/423.7, 427/133, 428/412, 428/413
International ClassificationC08J7/04, C08F290/00, C09D175/16, C08F299/00, B29C33/56, C08J5/00, B29K75/00, C08F299/06, C08G18/00, B29C45/14, C08G18/04, B29C43/18
Cooperative ClassificationC08J5/00, C09D175/16, C08G18/00, C08G18/04
European ClassificationC08G18/04, C08J5/00, C08G18/00, C09D175/16