Dip molded polyurethane film compositions

Details Dip molded polyurethane film compositions Dip molded polyurethane film compositions

1993-11-29

1996-09-10

Seidleck, James J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524113, 524233, 524251, 524315, 524356, 524379, 524376, 524385, 524590, 528 44, C08K 53415, C08K 554, C08K 505, C08K 502

Patent

active

055546730

ABSTRACT:
Dip molding of thermoplastic polyurethane elastomers to form medical and surgical gloves, condoms, instrument and appliance covers, and other rubber goods is improved by a controlled viscosity, controlled rate of evaporation solvent system, including a strong polar solvent, a weak solvent or non-solvent to control viscosity, and a blush resistor to control the rate of evaporation and the effects of humidity. For particularly enhanced barrier film formation, a leveling agent is also included. One or more layers are dipped in sequential steps in thicknesses of 0.5 to 1.5 mils per layer, with complete integral film formation and substantially complete freedom from porosity and pin holes. Cross-linkable polyurethanes may be cured after fully molded.

REFERENCES:
patent: 3668173 (1972-06-01), Wooster et al.
patent: 3896753 (1975-07-01), Shepherd et al.
patent: 4301053 (1981-11-01), Wolfrey
patent: 4431763 (1984-02-01), Reed
patent: 4543405 (1985-09-01), Ambrose et al.
patent: 4558075 (1985-12-01), Suss et al.
patent: 4853418 (1989-08-01), Hanada et al.
patent: 5254619 (1993-10-01), Ando

Affiliated with

Also associated with

Rating

Dip molded polyurethane film compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dip molded polyurethane film compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dip molded polyurethane film compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1321192