An allophanate-modified urethane resin is formed by reacting an allophanate-modified isocyanurate with one or more hydroxy-functional olefinic compounds, such as hydroxy-functional acrylates, methacrylates, allyl ethers, or vinyl ethers. Such resins typically have relatively low viscosities and can
An allophanate-modified urethane resin is formed by reacting an allophanate-modified isocyanurate with one or more hydroxy-functional olefinic compounds, such as hydroxy-functional acrylates, methacrylates, allyl ethers, or vinyl ethers. Such resins typically have relatively low viscosities and can be used to make coating compositions for surfaces such as wood, cement, vinyl, plastic, metal, and glass on such diverse products as flooring, vinyl tiles and sheets, fiber optics, and plastic. Such coating compositions are typically curable by thermal processes or by high-energy irradiation, including UV/visible light or electron beam irradiation.
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[ We claim:] [1.] A resin comprising an allophanate-modified urethane resin having the formula: [ STR 5 ] wherein X.sup.1, X.sup.2, X.sup.3 are independently --(R.sup.1 --O).sub.n --R.sup.2 --(O--R.sup.3).sub.p, --(R.sup.4 --C(O)--O).sub.m --R.sup.5 --(O--R.sup.11).sub.r, or --CH.sub.2 --C(R.sup.12)
[ We claim:] [1.] A resin comprising an allophanate-modified urethane resin having the formula: [ STR 5 ] wherein X.sup.1, X.sup.2, X.sup.3 are independently --(R.sup.1 --O).sub.n --R.sup.2 --(O--R.sup.3).sub.p, --(R.sup.4 --C(O)--O).sub.m --R.sup.5 --(O--R.sup.11).sub.r, or --CH.sub.2 --C(R.sup.12).dbd.CHR.sup.13 ;R.sup.1, R.sup.2, R.sup.4, and R.sup.5 are independently C2-C12 alkylene;R.sup.3 and R.sup.11 are independently --C(R.sup.14).dbd.CHR.sup.15, --CH.sub.2 --C(R.sup.16).dbd.CHR.sup.17, or --C(O)--C(R.sup.18).dbd.CHR.sup.19 ;R.sup.6 is C1-C8 alkyl or C3-C8 cycloalkyl;R.sup.7, R.sup.8, R.sup.9, and R.sup.10 are independently C2-C12 alkylene;R.sup.12, R.sup.13, R.sup.14, R.sup.15, R.sup.16, R.sup.17, R.sup.18, and R.sup.19 are independently H or C1-C4 alkyl;n is an integer from 0 to 12;m is an integer from 1 to 4;p is an integer from 1 to 3; andr is an integer from 1 to 3.
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