Polyolefin foams made with isopentane-based blowing agents

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C142S056000

Reexamination Certificate

active

07045556

ABSTRACT:
A blowing agent blend for making polyolefin foams comprising isopentane and at least one co-blowing agent. The co-blowing agent is either a physical co-blowing agent having a boiling point less than 28° C., or a chemical co-blowing agent, or combinations thereof. The blowing agent blend comprises less than about 99 mol % isopentane.

REFERENCES:
patent: 3431164 (1969-03-01), Gilbert
patent: 3432447 (1969-03-01), Patterson et al.
patent: 3644230 (1972-02-01), Cronin
patent: 3863000 (1975-01-01), Kasai et al.
patent: 4198363 (1980-04-01), Noel
patent: 4217319 (1980-08-01), Komori
patent: 4255372 (1981-03-01), Kühnel et al.
patent: 4289857 (1981-09-01), Hoki et al.
patent: 4331779 (1982-05-01), Park
patent: 4343913 (1982-08-01), Watanabe et al.
patent: 4344710 (1982-08-01), Johnson et al.
patent: 4345041 (1982-08-01), Hoki et al.
patent: 4359539 (1982-11-01), Hoki et al.
patent: 4369257 (1983-01-01), Hoki et al.
patent: 4424287 (1984-01-01), Johnson et al.
patent: 4470938 (1984-09-01), Johnson
patent: 4485059 (1984-11-01), Krutchen et al.
patent: 4528221 (1985-07-01), Komatsuzaki et al.
patent: 4528300 (1985-07-01), Park
patent: 4569950 (1986-02-01), Hoshi et al.
patent: 4644013 (1987-02-01), Fujie et al.
patent: 4652590 (1987-03-01), Hoki et al.
patent: 4694027 (1987-09-01), Park
patent: 4847150 (1989-07-01), Takeda
patent: 4956395 (1990-09-01), Leduc
patent: 5059376 (1991-10-01), Pontiff et al.
patent: 5089533 (1992-02-01), Park
patent: 5124097 (1992-06-01), Malone
patent: 5225451 (1993-07-01), Rogers et al.
patent: 5286429 (1994-02-01), Blythe et al.
patent: 5290822 (1994-03-01), Rogers et al.
patent: 5348984 (1994-09-01), Lee
patent: 5356944 (1994-10-01), Blythe et al.
patent: 5424016 (1995-06-01), Kolosowski
patent: 5453454 (1995-09-01), Alicke et al.
patent: 5460818 (1995-10-01), Park et al.
patent: 5462974 (1995-10-01), Lee
patent: 5562857 (1996-10-01), Werner et al.
patent: 5576094 (1996-11-01), Callens et al.
patent: 5585058 (1996-12-01), Kolosowski
patent: 5667928 (1997-09-01), Thomas et al.
patent: 5672294 (1997-09-01), Lund et al.
patent: 5939463 (1999-08-01), Wu et al.
patent: 6069183 (2000-05-01), Wilkes et al.
patent: 6136875 (2000-10-01), Wu et al.
patent: 6225363 (2001-05-01), Wilkes et al.
patent: 52724/79 (1980-05-01), None
patent: 42 01 763 (1991-01-01), None
patent: 0 647 673 (1986-10-01), None
patent: 0 585 147 (1993-07-01), None
patent: 5141149 (1976-11-01), None
patent: 3-63123 (1991-03-01), None
patent: 2623136 (1997-04-01), None
patent: 9231337 (1997-09-01), None
PCT Search Report dated Aug. 19, 2003 for International Application No. PCT/US03/18151, filed Jun. 10, 2003 (3 pages).
V. Firdaus, P.P. Tong, K.K. Cooper and Mobil Chemical Company, “A Developmental HDPE Foam Resin” Edison NJ, pp. 1931-1936 (1996).
Krutchen, et al., “Gas Chromatographic Determination of Residual Blowing Agents in Polystyrene Foams,”Proceeding SPE ANTEC '88(1988), pp. 704-706.
General Purpose Polystyrene,Encyclopedia of Polymer Science and Engineering, J. Wiley & Sons, 2nd Edition, vol. 16, pp. 62-71 (1989).
Zwolinski et al., Extruded Polystyrene Foam With CFC/Carbon Dioxide Blowing Agents,ANTEC 1986, pp. 30-33 (1986).

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

Polyolefin foams made with isopentane-based blowing agents 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 foams made with isopentane-based blowing agents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyolefin foams made with isopentane-based blowing agents will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3635593

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