发明名称 |
Nonwoven binders of vinyl acetate/ethylene/self-crosslinking monomer and tetramethylol glycoluril having improved shelf life |
摘要 |
Vinyl acetate/ethylene (VAE) copolymer emulsions having extended shelf life which are particularly suited for use as binders of nonwoven substrates. The copolymer emulsions are prepared by incorporating 1 to 45 wt % tetramethylol glycoluril, based on the amount of vinyl acetate in the copolymer, into an aqueous dispersion of a copolymer consisting essentially of 60 to 94 wt % vinyl acetate, 5 to 30 wt % ethylene and 1 to 10 wt % of a crosslinkable comonomer. Suitable crosslinking monomers include N-acrylamidoglycolic acid and N-methylol acrylamide. Nonwoven products formed by depositing the emulsion onto a nonwoven substrate exhibit significantly improved resistance to organic solvents.
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申请公布号 |
US5180772(A) |
申请公布日期 |
1993.01.19 |
申请号 |
US19890317234 |
申请日期 |
1989.02.28 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
MAO, CHUNG-LING;GOLDSTEIN, JOEL E.;IACOVIELLO, JOHN G. |
分类号 |
C08L31/04;C08K5/3445;D04H1/58 |
主分类号 |
C08L31/04 |
代理机构 |
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