Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent
1981-12-07
1986-10-14
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
2642102, 2642105, 2642106, 523149, 523152, 523153, 523155, 523156, 523157, 523159, B29C 4700, C08J 514
Patent
active
046171622
ABSTRACT:
Method for the production of friction linings, in which a mixture of fibers and wetting agents with water, in a fiber:water-mixture ratio from about 1:3 to 1:7, in the presence of plastifying components, is homogenized, the so formed plastic mass is shaped into a formed body, the formed body is dried, and then strengthened and hardened under heat and pressure. According to a variation, additives are first intensively mixed in after homogenization of the mixture containing fibers, wetting agent, plastifying component and water. The plastifying component may be a pectin, a polysaccharide, a vegetable glue or a viscose solution, in particular algin or gum arabic. Moreover, the plastifying component may be a colloid, in particular an aqueous colloid. It may also be a fiber colloid. In that case, it is preferred for the fiber colloid content to be greater than about 30% by weight. The invention also includes friction linings produced according to this method, wherein the fibers have a length according to Group 3 and/or 4 (Quebec Box Test), and are distributed homogeneously throughout the friction lining. The fibers are distributed homogeneously in a matrix containing the binding agent and additive, and the matrix contains a plastifying agent.
REFERENCES:
patent: 1969041 (1934-08-01), Seabury et al.
patent: 2127298 (1938-08-01), Isaacs
patent: 2262733 (1941-11-01), Nan Feldt
patent: 4101500 (1978-07-01), Brodsky
patent: 4324706 (1982-04-01), Tabe et al.
Fetzer Hans
von Rex Wolff G.
Derrington James
Rex Patent Graf von Rex GmbH & Co KG
Striker Michael J.
LandOfFree
Friction linings, in particular for clutch facings, and method f does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Friction linings, in particular for clutch facings, and method f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Friction linings, in particular for clutch facings, and method f will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1339484