Stock material or miscellaneous articles – Composite – Of polyester
Reexamination Certificate
2005-07-12
2005-07-12
Chen, Vivian (Department: 1773)
Stock material or miscellaneous articles
Composite
Of polyester
C428S195100, C428S323000, C428S141000, C428S329000, C528S298000, C528S300000, C528S302000, C528S303000, C528S306000, C528S354000, C528S361000, C528S363000
Reexamination Certificate
active
06916547
ABSTRACT:
Novel multifunctional unsaturated polyester polyols, UV-curable top coat formulations including these polyols, and a one-step process for preparing these polyols, are disclosed. Surface coverings and surface covering components including these top coat formulations are also disclosed. The polyols are generally formed by the ring opening polymerization of a lactone with a compound of the formula (R1)aR(OH)b, where a+b>2. R1is a double bond-containing moiety such as allyl, vinyl, vinylidene, vinyl ether, acrylate, and the like. R is generally an alkyl, aryl, aralkyl, alkaryl, ether or ester group, including substituted versions thereof. R can be a polymer, including polymers with a plurality of functional groups. Examples of lactone groups which can be used include caprolactone, lactide and glycolide. The polyols can be used in 100% solids, solvent and water based radiation cured coatings, thermal cured coatings, dual cure (thermal with UV/e-beam, or UV/e-beam with thermal curing) coatings, and other types of coatings. These new resins enhance coating performance due to their multi-functional groups in the polymer chain.
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Ross Jeff S.
Tian Dong
AWI Licensing Company
Chen Vivian
LandOfFree
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