3,6-Dioxabicyclo[6.2.2]dodeca-8,10,11-triene-2,7-dione → Terephthalic Acid

HRID 369559Notes

Reaction equation

HRID 369559 reaction equation
[C:1]1(=[O:14])[O:11]CC[O:8][C:6](=[O:7])[C:5]2[CH:12]=[CH:13][C:2]1=[CH:3][CH:4]=2>C(O)CO>[C:1]([OH:14])(=[O:11])[C:2]1[CH:13]=[CH:12][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1

Participants

3

Reactant 1

HCID 150661113,6-Dioxabicyclo[6.2.2]dodeca-8,10,11-triene-2,7-dione

Product 1

HCID 7489Terephthalic Acid

Reagents, catalysts & solvents 1

HCID 174Ethylene GlycolSolvent

Procedure

The polymer composition forming the supporting film of the present invention may be the polyester-a alone. This polyester-a is a copolyester containing ethylene terephthalate units as a main recurring unit and having a melting point of 210 to 250° C. The polyester-a is obtained from terephthalic acid as an acid component, ethylene glycol as a glycol component and further a copolymer component. The copolymer component may be either an acid component or a glycol component. Illustrative examples of the acid component include aromatic dibasic acids such as isophthalic acid, phthalic acid and naphthalenedicarboxylic acid; aliphatic dicarboxylic acids such as adipic acid, azelaic acid, sebacic acid and decanedicarboxylic acid; alicyclic dicarboxylic acids such as cyclohexanedicarboxylic acid; and the the like. Illustrative examples of the glycol component include aliphatic diols such as butane diol and hexane diol; alicyclic diols such as cyclohexane dimethanol; and the like. They may be used alone or in combination of two or more.

Workup

  1. customThe polymer composition forming the supporting film of the present invention

Sources & evidence

ORD record
ord-6648e3d67f7d473d95b95f4080555bd0
Source dataset
uspto-grants-2000_10
Patent number
US06140013

Reaction notes

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