NL7409877A - High softening, good colour polyethylene 2,6 naphthalate - from naphthalene 2,6-dicarboxylic acid and ethylene glycol - Google Patents
High softening, good colour polyethylene 2,6 naphthalate - from naphthalene 2,6-dicarboxylic acid and ethylene glycolInfo
- Publication number
- NL7409877A NL7409877A NL7409877A NL7409877A NL7409877A NL 7409877 A NL7409877 A NL 7409877A NL 7409877 A NL7409877 A NL 7409877A NL 7409877 A NL7409877 A NL 7409877A NL 7409877 A NL7409877 A NL 7409877A
- Authority
- NL
- Netherlands
- Prior art keywords
- dicarboxylic acid
- naphthalate
- naphthalene
- ethylene glycol
- high softening
- Prior art date
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
- C08G63/181—Acids containing aromatic rings
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
Polyethylene 2,6-naphthalate (PEN) or a polyester contg. mainly PEN is prepd. by esterifying naphthalene 2,6-dicarboxylic acid, as crystalline particles with specific surface is not >1.2 m2/g, opt. contg. is not >10 mol. % of another dicarboxylic acid, with ethylene glycol, opt. contg. is not >10 mol. % of another hydroxy cpd. and polycondensing the monomeric or oligomeric ester. The PEN has reproducible high quality.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7409877A NL7409877A (en) | 1974-07-22 | 1974-07-22 | High softening, good colour polyethylene 2,6 naphthalate - from naphthalene 2,6-dicarboxylic acid and ethylene glycol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7409877A NL7409877A (en) | 1974-07-22 | 1974-07-22 | High softening, good colour polyethylene 2,6 naphthalate - from naphthalene 2,6-dicarboxylic acid and ethylene glycol |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7409877A true NL7409877A (en) | 1976-01-26 |
Family
ID=19821801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7409877A NL7409877A (en) | 1974-07-22 | 1974-07-22 | High softening, good colour polyethylene 2,6 naphthalate - from naphthalene 2,6-dicarboxylic acid and ethylene glycol |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL7409877A (en) |
-
1974
- 1974-07-22 NL NL7409877A patent/NL7409877A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BV | The patent application has lapsed |