Elastomeric triblock copolymer compositions and articles made th

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

524485, 524486, 524490, 524491, 524505, C08K 501

Patent

active

051129000

ABSTRACT:
An elastomeric composition is formed of at least two, and preferably three, S-EB-S elastomeric triblock copolymers having different solution viscosity/copolymer concentration relationships, and a sufficient amount of a mineral oil plasticizer to achieve excellent tactility with acceptable strength. To prepare articles such as medical film protective devices, the elastomeric composition is dissolved in a sufficient amount of a solvent to permit dip forming. A form having the shape of the desired product is dipped into the solution to build up a film of the elastomeric composition on the form. The dip-formed elastomeric films are free of pinholes and resistant to oxidative and ozone attack. The films are particularly suitable for use in products such as examination, surgical, and industrial gloves and condoms.

REFERENCES:
patent: 2133947 (1938-10-01), Boecler
patent: 2371883 (1945-03-01), Gammeter et al.
patent: 2847715 (1958-08-01), Dosmann
patent: 3025403 (1962-03-01), Belknap et al.
patent: 3059241 (1962-10-01), O'Brien et al.
patent: 3225360 (1965-12-01), Keilen, Jr. et al.
patent: 3286011 (1966-11-01), Kavalir et al.
patent: 3397265 (1968-08-01), Ansell
patent: 3563244 (1971-02-01), Asaka
patent: 3830767 (1974-08-01), Condon
patent: 3933723 (1976-01-01), Grenness
patent: 4006116 (1977-02-01), Dominguez
patent: 4039629 (1977-08-01), Himes et al.
patent: 4041103 (1977-08-01), Davison et al.
patent: 4061709 (1977-12-01), Miller et al.
patent: 4070713 (1978-01-01), Stockum
patent: 4386179 (1983-05-01), Sterling
patent: 4481323 (1984-11-01), Sterling
patent: 4485787 (1985-12-01), Haefele et al.
patent: 4511354 (1985-04-01), Sterling
patent: 4684490 (1987-08-01), Taller et al.
patent: 4742578 (1988-05-01), Seid
patent: 4808174 (1989-02-01), Sorkin
"KratonR Thermoplastic Rubber" by Shell Chemical Co. (Oct. 1989).
"Kraton Thermoplastic Rubber Medical Products", by Shell Chemical Co., Technical Bulletin SC:1032-88 (1988).
"Kraton G1650 Thermoplastic Rubber", by Shell Chemical Co., Technical Bulletin SC:38-85 (1985).
"Kraton G1652 Thermoplastic Rubber", by Shell Chemical Co., Technical Bulletin SC:38-85 (1985).
"Solution Behavior of Kraton Thermoplastic Rubbers", by Shell Chemical Co., Technical Bulletin SC:72-85 (1985).
"Gas Permeability of Kraton Rubbers", by Shell Chemical Co., Technical Bulletin SC:941-87 (1987).
"Kraton Thermoplastic Rubber--Typical Properties 1988", by Shell Chemical Co.
ASTM Standard Specification for Rubber Contraceptives (Condoms), D3492-83 (1983).
ASTM Standard Specification for Rubber Surgical Gloves, D3577-88 (1988).
ASTM Standard Specification for Rubber Examination Gloves, D3578-77 (1977).
F. T. J. Burke et al., "Some physical factors influencing tactile perception with disposable non-sterile gloves," J. Dent., vol. 17, pp. 72-76 (1989).
P. Gergan et al., "Hydrogenated Block Copolymers in Thermoplastic Elastomer IPNs", Chapter 14 (pp. 507-540) of Thermoplastic Elastomers, by N. R. Legge et al., 1987.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Elastomeric triblock copolymer compositions and articles made th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Elastomeric triblock copolymer compositions and articles made th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elastomeric triblock copolymer compositions and articles made th will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2426327

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.