SU1757216A1 - Statistically branched polycarbonate for structural and optical article at enhanced thermostability - Google Patents
Statistically branched polycarbonate for structural and optical article at enhanced thermostabilityInfo
- Publication number
- SU1757216A1 SU1757216A1 SU4875262/05A SU4875262A SU1757216A1 SU 1757216 A1 SU1757216 A1 SU 1757216A1 SU 4875262/05 A SU4875262/05 A SU 4875262/05A SU 4875262 A SU4875262 A SU 4875262A SU 1757216 A1 SU1757216 A1 SU 1757216A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- mol
- branched polycarbonate
- structural
- enhanced thermostability
- optical article
- Prior art date
Links
Landscapes
- Polyesters Or Polycarbonates (AREA)
Abstract
FIELD: polymeric materials. SUBSTANCE: product: statistically branched polycarbonate of the general formula:where R - CHor Rr; R- H or CH; R- - alkyl-group CH-CHor benzyl-group CH-CH; I = 87-95.5 mol.%; K = 6-10 mol.%; p = 0.5-10 mol.%; relative viscosity is 1.170-1.350 measured at 20 C at concentration 0.5 g/100 ml in methylene chloride. Polycarbonate is prepared by interphase polycondensation of corresponding bis-phenols with phosgene in the medium of aqueous alkali and organic solvent, in the presence of branching agent, triethylamine and regulator of molecular mass. EFFECT: improved method of synthesis, enhanced thermostability. 2 tbl
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4875262/05A SU1757216A1 (en) | 1990-10-18 | 1990-10-18 | Statistically branched polycarbonate for structural and optical article at enhanced thermostability |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4875262/05A SU1757216A1 (en) | 1990-10-18 | 1990-10-18 | Statistically branched polycarbonate for structural and optical article at enhanced thermostability |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1757216A1 true SU1757216A1 (en) | 1996-08-27 |
Family
ID=60532769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4875262/05A SU1757216A1 (en) | 1990-10-18 | 1990-10-18 | Statistically branched polycarbonate for structural and optical article at enhanced thermostability |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1757216A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2451035C2 (en) * | 2006-09-28 | 2012-05-20 | Байер Матириальсайенс Аг | Polycarbonates and copolycarbonates having improved adhesion to metal |
-
1990
- 1990-10-18 SU SU4875262/05A patent/SU1757216A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2451035C2 (en) * | 2006-09-28 | 2012-05-20 | Байер Матириальсайенс Аг | Polycarbonates and copolycarbonates having improved adhesion to metal |
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