Patent ID: 11939514
Assignee: DANFOSS A/S
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A water-swellable elastomeric composition comprising
(i) 100 pph of a base polymer comprising an acrylonitrile butadiene rubber (NBR);
(ii) 10-100 pph of a fibrous non-starch plant-based polysaccharide selected from the group consisting of apple fiber, beet fiber, carrot fiber, coir fiber (coconut husk), flax fiber (herbaceous plant), grapefruit fiber, orange fiber, palm fiber, parsnip fiber, rice paper plant fiber (Tetrapanax papyriferus), squash fiber, turnip fiber, and yam fiber, and mixtures and blends thereof;
(iii) 5-20 pph of a diffusion promoter;
(iv) 5-20 pph of a fluid retaining agent; and
(v) 5-50 pph of a silica reinforcing filler.