Polyolefin coatings and films having release characteristics

Details Polyolefin coatings and films having release characteristics Polyolefin coatings and films having release characteristics

1990-11-09

1992-12-08

Bleutge, John C.

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

Synthetic resins

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

525263, 525288, 525 64, 428391, 428447, C08F 800

Patent

active

051699001

ABSTRACT:
Polyolefin coatings and films that may be used as release sheets, processes for the manufacture thereof and the related compositions are disclosed. The release sheets are formed from a composition of polyolefin, a dimethyl polysiloxane having functional end-groups, a vinyl silane, an agent for grafting the vinyl silane onto the polyolefin and a moisture curing agent. The composition is fed to an extruder and formed into sheet, especially by feeding a mixture having two components, one having an excess of vinyl silane and the other having less than an excess of vinyl silane, based on the amount of dimethyl polysiloxane in each component. The release sheets may be used, for instance, as the backing sheet for labels.

REFERENCES:
patent: 4288497 (1981-09-01), Tanaka et al.
patent: 4362833 (1981-12-01), Mune et al.
patent: 4446090 (1984-05-01), Lavgren et al.
patent: 4978436 (1990-12-01), Kelly

Affiliated with

Also associated with

Rating

Polyolefin coatings and films having release characteristics does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyolefin coatings and films having release characteristics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyolefin coatings and films having release characteristics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-961488