发明名称 |
STABILIZER COMPOSITIONS |
摘要 |
The present invention relates to a stabilizer composition comprising a) at least one sterically hindered phenol, b) at least one phosphorus-containing secondary antioxidant, and c) at least one tocopherol compound wherein the weight ratio of component (a) to component (b) is from 2:1 to 1:4 and the weight ratio of component (a) to component (c) is from 2:1 to 10:1 for the stabilization of polyethylene-based thermoplastic polymers against degradation, cross-linking and/or discoloration due to the exposure to heat or light, especially in the presence of oxygen. A further aspect of the present invention is a masterbatch composition comprising the aforesaid stabilizer composition. A process for producing the stabilizer composition is similarly an object of the invention. The present invention also provides a method for enhancing the processing stability of polyethylene-based thermoplastic polymers comprising incorporating therein at any convenient stage of the processing a stabilizing quantity of the aforementioned stabilizer composition. The invention further embraces a stabilized polyethylene-based thermoplastic polymer and any article manufactured therefrom. |
申请公布号 |
WO9749758(A1) |
申请公布日期 |
1997.12.31 |
申请号 |
WO1997IB00770 |
申请日期 |
1997.06.24 |
申请人 |
CLARIANT INTERNATIONAL LIMITED;CLARIANT FINANCE (BVI) LIMITED;MALIK, JAN;STOLL, KLAUS;THUERMER, ANDREAS |
发明人 |
MALIK, JAN;STOLL, KLAUS;THUERMER, ANDREAS |
分类号 |
C08L23/04;C08K5/13;C08K5/1545;C08K5/16;C08K5/49 |
主分类号 |
C08L23/04 |
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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