JPS55161820A - Production of unsaturated polyester resin - Google Patents

Production of unsaturated polyester resin

Info

Publication number
JPS55161820A
JPS55161820A JP7045079A JP7045079A JPS55161820A JP S55161820 A JPS55161820 A JP S55161820A JP 7045079 A JP7045079 A JP 7045079A JP 7045079 A JP7045079 A JP 7045079A JP S55161820 A JPS55161820 A JP S55161820A
Authority
JP
Japan
Prior art keywords
dibasic acid
oligoester
moles
treated
anhydride
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7045079A
Other languages
Japanese (ja)
Inventor
Akira Miyamoto
Senzo Shimizu
Fumitaka Sato
Yasumitsu Higuchi
Toshiyuki Abe
Koji Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Priority to JP7045079A priority Critical patent/JPS55161820A/en
Priority to US06/150,691 priority patent/US4306056A/en
Priority to GB8016996A priority patent/GB2053202B/en
Priority to FR8011457A priority patent/FR2457305A1/en
Priority to DE3019859A priority patent/DE3019859C2/en
Publication of JPS55161820A publication Critical patent/JPS55161820A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To obtain economically titled resin having excellent water resistance and chemical resistance, by a method wherein a specified oligoester which is treated with a silica-alumina cpd. is reacted with a dibasic acid component contg. an unsaturated dibasic acid (anhydride).
CONSTITUTION: Isophthalic acid is reacted with propylene oxide in the presence of an amine cpd. to obtain an oligoester which is then heated at a temp. of 180W300°C to remove volatile matters. The heat-treated oligoester is treated with a silica- alumina cpd. having surface adsorption activity to remove the remaining volatile matters and nonvolatile contaminants. The product (A component) is blended with (B) a dibasic acid component contg. an unsaturated dibasic acid (anhydride) such as maleic anhydride, fumaric acid in an amount determined by the formula (wherein a is moles of unsaturated dibasic acid; b is moles of satd. dibasic acid; c is moles of oligoester; d is moles of polyhydric alcohol which is used together with (A) and (B) components). The mixt. is subjected to a condensation reaction to obtain the desired resin.
COPYRIGHT: (C)1980,JPO&Japio
JP7045079A 1979-05-23 1979-06-05 Production of unsaturated polyester resin Pending JPS55161820A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP7045079A JPS55161820A (en) 1979-06-05 1979-06-05 Production of unsaturated polyester resin
US06/150,691 US4306056A (en) 1979-05-23 1980-05-16 Process for producing an oligoester and producing unsaturated polyester resin by use thereof
GB8016996A GB2053202B (en) 1979-05-23 1980-05-22 Processes for producing an oligoester and producing unsaturated polyester resin by use thereof
FR8011457A FR2457305A1 (en) 1979-05-23 1980-05-22 PROCESSES FOR PRODUCING AN OLIGO-ESTER AND FOR PRODUCING AN UNSATURATED POLYESTER RESIN USING THE SAME
DE3019859A DE3019859C2 (en) 1979-05-23 1980-05-23 Process for the production of an oligoester of isophthalic acid and its use for the production of an unsaturated polyester resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7045079A JPS55161820A (en) 1979-06-05 1979-06-05 Production of unsaturated polyester resin

Publications (1)

Publication Number Publication Date
JPS55161820A true JPS55161820A (en) 1980-12-16

Family

ID=13431845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7045079A Pending JPS55161820A (en) 1979-05-23 1979-06-05 Production of unsaturated polyester resin

Country Status (1)

Country Link
JP (1) JPS55161820A (en)

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