发明名称 |
Process for the production of thermoplastic polymer by introducing thermoplastic polymer into an extruder and adding organic polyisocyanate and chain lengthening agent |
摘要 |
The instant invention is directed to a process for the modification of a thermoplastic polymer comprising: I. introducing 70 to 98 parts by weight of thermoplastic polymer into an extruder at a first inlet; II. adding to said thermoplastic polymer through a second inlet 2 to 30 parts by weight of the following polyurethane forming components, such that the total parts by weight of the thermoplastic polymer and polyurethane components is 100: (A) organic polyisocyanate; and (B) chain lengthening agent with a molecular weight below 400 containing at least one hydroxyl group and/or amino group; wherein the ratio of isocyanate groups of component (A) to Zerewitinoff active groups of component (B) is in the range of from 0.90:1 to 1.2:1; and III. discharging from the extruder the product of the process.
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申请公布号 |
US4261946(A) |
申请公布日期 |
1981.04.14 |
申请号 |
US19790103002 |
申请日期 |
1979.12.13 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
GOYERT, WILHELM;MEISERT, ERNST;GRIMM, WOLFGANG;EITEL, ALFRED;WAGNER, HANS;NIEDERDELLMANN, GEORG;QUIRING, BERND |
分类号 |
C08G18/00;C08G18/08;C08L1/00;C08L7/00;C08L21/00;C08L23/00;C08L27/00;C08L33/00;C08L33/02;C08L51/00;C08L51/02;C08L67/00;C08L75/00;C08L75/04;C08L77/00;C08L101/00;(IPC1-7):D01F1/02 |
主分类号 |
C08G18/00 |
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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