Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Reexamination Certificate
1999-10-28
2002-08-27
Pyon, Harold (Department: 1772)
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
C428S035700, C428S035800, C428S036900, C428S036100, C428S036200, C428S036700, C138S123000, C138S124000, C138S125000, C138S126000, C138S140000, C138S141000
Reexamination Certificate
active
06440512
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a hose which is particularly suited for use in conveying chemicals. Because of such use, resistance to absorption of such chemicals is desired. One method of measuring the resistance to absorption of a chemical is to look at volume swell while being subjected to such chemical. While the industry is constantly striving to improve the chemical resistance of such hose, one cannot sacrifice the flexural properties while improving the chemical resistance because it may limit the hose's desired applications. Therefore, there exists a need in the industry to provide a hose with improved chemical resistance and excellent flexibility.
SUMMARY OF THE INVENTION
There is disclosed a hose comprising
(a) an inner core comprising a ternary blend of (1) from 60 to 85 parts by weight of a low density polyethylene; (2) from 10 to 20 parts by weight of a chlorinated polyethylene, chlorosulfonated polyethylene and mixtures thereof; and (3) from 2 to 25 parts by weight of EPDM;
(b) a layer of tensioned reinforcement; and
(c) an elastomeric cover.
REFERENCES:
patent: 3528260 (1970-09-01), Binder
patent: 3972757 (1976-08-01), Derderian et al.
patent: 3988227 (1976-10-01), Eldred
patent: 4463121 (1984-07-01), Gartland et al.
patent: 4633912 (1987-01-01), Pilkington et al.
patent: 4685090 (1987-08-01), Krevor
patent: 4891409 (1990-01-01), Kuan et al.
patent: 4910245 (1990-03-01), Flynn et al.
patent: 4978703 (1990-12-01), Ainsworth et al.
patent: 4978716 (1990-12-01), Flynn et al.
patent: 5286795 (1994-02-01), Ainsworth
patent: 5341863 (1994-08-01), Sandstrom et al.
patent: 5380385 (1995-01-01), Derroire et al.
patent: 5387648 (1995-02-01), Ainsworth
patent: 5526848 (1996-06-01), Terashima et al.
patent: 5622210 (1997-04-01), Crisman et al.
patent: 5762850 (1998-06-01), Pyle et al.
patent: 0472512 (1991-08-01), None
patent: 1066962 (1967-04-01), None
European Search Report.
Cook Andre George
Langlois Pascal
Thomas John Patrick
DeLong John D.
Hendricks Bruce J.
Patterson Marc
Pyon Harold
The Goodyear Tire & Rubber Company
LandOfFree
Hose construction containing ternary blend of polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hose construction containing ternary blend of polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hose construction containing ternary blend of polymers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2953024