Invention Grant
US09321900B2 Inhibition of polymer surface oxidation utilizing two primary antioxidants in certain polymers
有权
在某些聚合物中利用两种主要抗氧化剂抑制聚合物表面氧化
- Patent Title: Inhibition of polymer surface oxidation utilizing two primary antioxidants in certain polymers
- Patent Title (中): 在某些聚合物中利用两种主要抗氧化剂抑制聚合物表面氧化
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Application No.: US14478790Application Date: 2014-09-05
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Publication No.: US09321900B2Publication Date: 2016-04-26
- Inventor: Katherine Finlay
- Applicant: EASTMAN CHEMICAL COMPANY
- Applicant Address: US TN Kingsport
- Assignee: Eastman Chemical Company
- Current Assignee: Eastman Chemical Company
- Current Assignee Address: US TN Kingsport
- Agent Robert C. Morriss
- Main IPC: C08K5/13
- IPC: C08K5/13 ; C08K5/134 ; C08K5/1545 ; C08K5/20 ; C08K5/09 ; C08K5/098 ; C08K5/01
Abstract:
This invention relates to a polymer composition comprising: (A) a copolyester comprising residues of terephthalic acid, 1,4-cyclohexanedimethanol, and 2,2,4,4-tetramethyl-cyclobutanediol, and (B) a stabilizing composition comprising: (1) a phenolic antioxidant without a long-chain substituent; and (2) a phenolic antioxidant with a long-chain substituent, wherein the phenolic antioxidant (1) has 10 to 20 carbon atoms, wherein the phenolic antioxidant (2) has greater than 20 carbon atoms, and wherein the weight ratio of phenolic antioxidant (1) to phenolic antioxidant (2) is from 0.7:1 to 1.3:1.
Public/Granted literature
- US20160068658A1 INHIBITION OF POLYMER SURFACE OXIDATION UTILIZING TWO PRIMARY ANTIOXIDANTS IN CERTAIN POLYMERS Public/Granted day:2016-03-10
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