发明授权
US5912304A Processes providing improved scorch retardation during compounding of
elastomers and thermoplastics curable with peroxides and azo compounds
失效
在弹性体复合过程中提供改善的焦烧延迟和用过氧化物和偶氮化合物固化的热塑性塑料的方法
- 专利标题: Processes providing improved scorch retardation during compounding of elastomers and thermoplastics curable with peroxides and azo compounds
- 专利标题(中): 在弹性体复合过程中提供改善的焦烧延迟和用过氧化物和偶氮化合物固化的热塑性塑料的方法
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申请号: US482601申请日: 1995-06-07
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公开(公告)号: US5912304A公开(公告)日: 1999-06-15
- 发明人: Michael Fred Novits , Chester Joseph Kmiec , Edward Phillip Hibbard
- 申请人: Michael Fred Novits , Chester Joseph Kmiec , Edward Phillip Hibbard
- 申请人地址: PA Philadephia
- 专利权人: Elf Atochem North America, Inc.
- 当前专利权人: Elf Atochem North America, Inc.
- 当前专利权人地址: PA Philadephia
- 主分类号: C08J3/24
- IPC分类号: C08J3/24 ; C08K5/00 ; C08K5/13 ; C08K5/14 ; C08K5/22 ; C08K5/23 ; C08K5/36 ; C08K5/38 ; C08K5/39 ; C08K5/40 ; C08K5/43 ; C08K5/44 ; C08L101/00 ; C08F259/08 ; C08F255/06 ; C08F263/04
摘要:
A crosslinkable composition of a polymeric thermoplastic and/or elastomeric material which is susceptible to scorching when processed at elevated temperatures, prior to crosslinking, in the presence of a free radical initiator, is protected against such scorching by the incorporation therein of a mixture of at least one hydroquinone compound and a sulfur accelerator. This mixture may also contain at least one monomeric allylic, methacrylic, acrylic or diene type coagent. The mixture exhibits a synergistic effect resulting in improved scorch protection for peroxide cured systems when compared with the protection afforded by the components singly.