Process for the surface modification of polyester material and t

Details Process for the surface modification of polyester material and t Process for the surface modification of polyester material and t

1985-02-25

1986-02-11

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528272, 5283081, 5283082, 528495, C08F28300, C08G 6376, C08L 6700

Patent

active

045699747

ABSTRACT:
Surface modification of polyester material is obtained by contacting the material in substantially non-crystallized form with a non-crystallizable oligomer. The oligomer has ester linkages and is prepared from a reaction mixture which includes at least one polyol having a functionality greater than three and selected from the group consisting of pentaerythritol, low molecular weight polymers of pentaerythritol, glycerol, low molecular weight polymers of glycerol and mixtures thereof. After contact with the oligomer, the polyester is crystallized. The modified polyester material exhibits improved properties such as hydrophilicity and/or adhesive bonding.

REFERENCES:
patent: 3935169 (1976-01-01), Reen
patent: 3943105 (1976-03-01), Hermes
patent: 4215032 (1980-07-01), Kabayashi et al.
patent: 4277584 (1981-07-01), Choi et al.
patent: 4379913 (1983-04-01), Waitkus
patent: 4446303 (1984-05-01), Moore et al.

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