Invention Grant
US4617369A Polyester polymers of 3-hydroxy-4'-(4-hydroxyphenyl)benzophenone or
3,4'-dihydroxybenzophenone and dicarboxylic acids
失效
3-羟基-4' - （4-羟基苯基）二苯甲酮或3,4'-二羟基二苯甲酮和二羧酸的聚酯聚合物
- Patent Title: Polyester polymers of 3-hydroxy-4'-(4-hydroxyphenyl)benzophenone or 3,4'-dihydroxybenzophenone and dicarboxylic acids
- Patent Title (中): 3-羟基-4' - （4-羟基苯基）二苯甲酮或3,4'-二羟基二苯甲酮和二羧酸的聚酯聚合物
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Application No.: US772619Application Date: 1985-09-04
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Publication No.: US4617369APublication Date: 1986-10-14
- Inventor: Gia Huynh-Ba
- Applicant: Gia Huynh-Ba
- Applicant Address: DE Wilmington
- Assignee: E. I. Du Pont de Nemours and Company
- Current Assignee: E. I. Du Pont de Nemours and Company
- Current Assignee Address: DE Wilmington
- Main IPC: C08G63/18
- IPC: C08G63/18 ; C08G63/19 ; C08G63/193 ; C08G8/02
Abstract:
Aromatic polyesters derived from at least 10% glycols of the structure ##STR1## are disclosed. The polyesters have an inherent viscosity of at least 0.5 as measured from a 0.5 g solution in 100 ml of an equal volume mixture of p-chlorophenol and1,2-dichloroethane, and a heat of fusion of less than 1.5 joule per gram.
Public/Granted literature
- US5787709A Exhaust manifold Public/Granted day:1998-08-04
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