Thermoplastic coating compositions and process using same

Details Thermoplastic coating compositions and process using same Thermoplastic coating compositions and process using same

1993-04-05

2000-09-26

Dawson, Robert

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

Synthetic resins

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

528106, C08F 815, C08L 6302

Patent

active

061244015

ABSTRACT:
This invention provides for a coating composition comprising: (A) at least one polymeric material selected from (i) at least one homopolymer of ethylene having a melt index of at least about 220 grams per ten minutes as determined by ASTM D1238, condition 190/2.16, or (ii) at least one copolymer of ethylene and a second ethylenically unsaturated monomer having a melt index of at least about 20 grams per ten minutes as determined by ASTM D1238, condition 190/2.16, or (iii) at least one thermoplastic acrylic homopolymer or copolymer having a glass transition temperature (Tg) of greater than 0.degree. C. but less than 110.degree. C., or (iv) a mixture of (i), (ii) and/or (iii); and (B) at least one thermoplastic polymeric material different than (A) having a melting point in the range of about 80.degree. C. to about 130.degree. C. and being miscible with (A) and wherein the viscosity of the polymer composition (A) and (B) is in the range of about 5,000 cps to about 100,000 cps at a temperature range of about 200.degree. F. to about 300.degree. F. The invention further provides for a process for applying the foregoing coating composition to a substrate such as glass, ceramic, metal, fiberboard, textile or plastic substrate (e.g., glass jars or bottles) preferably using hot melt screen printing; the process employs a low-temperature cure that requires only a relatively brief cure time (e.g., less than about one second). The coating composition can be reheated to obtain higher gloss and/or enhance the adhesion of the coating to the substrate.

REFERENCES:
patent: 2748093 (1956-05-01), Morris
patent: 2807555 (1957-09-01), Short
patent: 2842454 (1958-07-01), Short
patent: 3607808 (1971-09-01), Thompson
patent: 3872044 (1975-03-01), Hervey et al.
patent: 4051096 (1977-09-01), Koseki et al.
patent: 4071494 (1978-01-01), Gaylord
patent: 4367113 (1983-01-01), Karim et al.
patent: 4433073 (1984-02-01), Sano et al.
patent: 4454379 (1984-06-01), Cleveland et al.
patent: 4603172 (1986-07-01), Albee et al.
patent: 4789699 (1988-12-01), Kieffer et al.
patent: 4803117 (1989-02-01), Daponte
patent: 4870128 (1989-09-01), Couturier et al.
patent: 4871810 (1989-10-01), Saltman

Affiliated with

Also associated with

Rating

Thermoplastic coating compositions and process using same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermoplastic coating compositions and process using same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermoplastic coating compositions and process using same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2100959