FR2382470A1 - Polyesters of low melt viscosity - obtd. by reacting terephthalic and isophthalic acids with a substd. hydroquinone diester - Google Patents

Polyesters of low melt viscosity - obtd. by reacting terephthalic and isophthalic acids with a substd. hydroquinone diester

Info

Publication number
FR2382470A1
FR2382470A1 FR7706067A FR7706067A FR2382470A1 FR 2382470 A1 FR2382470 A1 FR 2382470A1 FR 7706067 A FR7706067 A FR 7706067A FR 7706067 A FR7706067 A FR 7706067A FR 2382470 A1 FR2382470 A1 FR 2382470A1
Authority
FR
France
Prior art keywords
obtd
melt viscosity
substd
polyesters
pref
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.)
Granted
Application number
FR7706067A
Other languages
French (fr)
Other versions
FR2382470B1 (en
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to FR7706067A priority Critical patent/FR2382470A1/en
Publication of FR2382470A1 publication Critical patent/FR2382470A1/en
Application granted granted Critical
Publication of FR2382470B1 publication Critical patent/FR2382470B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/19—Hydroxy compounds containing aromatic rings
    • C08G63/191—Hydroquinones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

A polyester of inherent viscosity at least 0.5 (pref. at least 0.7) is obtd. by reacting at 275-375 (pref. 330-360) degrees C, a mixt. of 60-35 (pref. 60-40) mole % terephthalic acid and 40-65 (pref. 40-60) mole % isophthalic acid and a hydroquinone deriv. of the formula: (where R is alkyl, aromatic or alicyclic and X is 1-4C alkyl, Cl or Br). The polyester has apparent melt viscosity (10,000 poise) low enough to be prepd. in commercial gravity flow reactors. Methyl-hydroquinone diacetate, terephthalic acid and isophthalic acid are reacted at 340 degrees C to give a polyester of inherent viscosity >1.20.
FR7706067A 1977-03-02 1977-03-02 Polyesters of low melt viscosity - obtd. by reacting terephthalic and isophthalic acids with a substd. hydroquinone diester Granted FR2382470A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7706067A FR2382470A1 (en) 1977-03-02 1977-03-02 Polyesters of low melt viscosity - obtd. by reacting terephthalic and isophthalic acids with a substd. hydroquinone diester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7706067A FR2382470A1 (en) 1977-03-02 1977-03-02 Polyesters of low melt viscosity - obtd. by reacting terephthalic and isophthalic acids with a substd. hydroquinone diester

Publications (2)

Publication Number Publication Date
FR2382470A1 true FR2382470A1 (en) 1978-09-29
FR2382470B1 FR2382470B1 (en) 1980-09-26

Family

ID=9187443

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7706067A Granted FR2382470A1 (en) 1977-03-02 1977-03-02 Polyesters of low melt viscosity - obtd. by reacting terephthalic and isophthalic acids with a substd. hydroquinone diester

Country Status (1)

Country Link
FR (1) FR2382470A1 (en)

Also Published As

Publication number Publication date
FR2382470B1 (en) 1980-09-26

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Legal Events

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ST Notification of lapse