发明名称 |
Method of dispersing solid additives in polymers and products made therewith |
摘要 |
A method for dispersing solid forms of additives in polymers involves adding dispersions or solutions of additive(s) to a solution of polymer in a tubular mixer (preferably in the presence of a stationary mixer). The mixer leads to a steam precipitation step wherein all fluid ingredients in the mixture are volatilized leaving the solid additive and resin in the desired ratio. This results in a uniform dispersion of the additives in the polymer matrix. As a result of the high dispersion, physical properties of a thermoplastic resin, to which the polymer matrix has been added are preserved. In one illustration, PTFE as a drip inhibitor additive, is added to polycarbonate to obtain a highly dispersed PTFE concentrate of improved drip-inhibition without loss of mechanical properties when added to a thermoplastic molding resin.
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申请公布号 |
US5521230(A) |
申请公布日期 |
1996.05.28 |
申请号 |
US19950416549 |
申请日期 |
1995.04.03 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
BHATIA, QAMAR S.;BUCKLEY, PAUL;DAVIS, GARY;HOWE, ROBERT L.;PAN, WIE-HIN;SHANKLIN, ELLIOTT |
分类号 |
C08J3/00;C08J3/215;C08L27/12;C08L27/18;C08L67/02;C08L69/00;C08L101/00;(IPC1-7):C08F6/12 |
主分类号 |
C08J3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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