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US 12,467,203 B2Granted
Doctor blade including natural reinforcement fabric layers bonded together with bio-derived resin matrix
AssigneeKadant Inc.
InventorsMichael Draper, Ka Lun To
Life of this patent
Estimating the term…
Abstract
A doctor blade for contacting a roll surface in a papermaking machine is provided that includes a plurality of reinforcement fabric layers bonded together with a renewable, sustainable, eco-friendly, bio-derived resin matrix, thereby forming a multi-layer composite having a beveled edge contacting a roll surface. Each reinforcement fabric layer comprises renewable, sustainable, eco-friendly, natural reinforcement fibres, and the bio-derived resin matrix is a polymeric resin matrix produced from renewable natural resources.
Claims6
A doctor blade for contacting a roll surface in a papermaking machine, said doctor blade comprising:
- a plurality of reinforcement fabric layers bonded together with a renewable, sustainable, eco-friendly, bio-derived resin matrix, thereby forming a multi-layer composite having a beveled edge contacting a roll surface,
- wherein each reinforcement fabric layer comprises renewable, sustainable, eco-friendly, natural reinforcement fibres, the natural reinforcement fibres being selected from the group consisting of flax, jute, bluebell tunicate, wood, recycled wood, hemp, cellulose, regenerated cellulose fibres, bamboo, kenaf and nettle, and
- wherein the bio-derived resin matrix includes a polymeric resin matrix produced from renewable natural resources, the renewable natural resources being selected from the group consisting of starch sugars, lipids, corn, sugar beet, wheat, sugar cane bagasse, plant oil, vegetable based sources, crop processing bi-products, algae, peanut hulls, and cashew nut shell oil.
Dependencies are inferred from the claim text.