Graft polymers for use in engineering thermoplastic blends
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United States of America Patent
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Sep 14, 1993
Grant Date -
N/A
app pub date -
Jul 22, 1991
filing date -
Jul 22, 1991
priority date (Note) -
Expired
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Abstract
Graft polymers for use as compatibilizers and/or modifiers for engineering thermoplastic compositions are provided comprising the reaction product of functionalized thermoplastic polymers with styrene-maleic anhydride copolymer. The functionalized thermoplastic polymers are based typically on polyolefin polymers and contain at least one functional group reactive either with styrene-maleic anhydride copolymer, or with direactive linking groups reactive with both of the functionalized thermoplastic polymer and styrene-maleic anhydride copolymer. The engineering thermoplastic compositions to be modified include polar engineering thermoplastics and the non-polar engineering thermoplastics based on styrene.
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