US 2019/0161592 A1Published application

Sound-insulating sponge material, vehicle sealing material, and weather strip

AssigneesNishikawa Rubber Co., Ltd., Daio Paper Corporation

InventorsKeigo MATSUMOTO, Syoichi NAKAMOTO, Katsunori NAKASHIMA, Junya OKAWA, Takaaki IMAI

Life of this patent

Estimating the term…

A surface of a rubber sponge material 4 such as a vehicle weather strip is covered with a resin coat 6 containing dispersed cellulose fibers 5.

Dependent claims

A sound-insulating sponge material, wherein a rubber sponge material has a surface coated with a resin coat containing dispersed cellulose fibers.

Dependencies are inferred from the claim text.

C08J 9/365
After-treatment: coating
G10K 11/162
Methods or devices for protecting against, or for damping, noise or other acoustic waves in general: selection of materials
C08J 2323/16
Not modified by chemical after treatment: ethene-propene or ethene-propene-diene copolymers
C08J 2401/02
Characterised by the use of cellulose, modified cellulose or cellulose derivatives: cellulose; Modified cellulose

From the US filing history. Foreign family members aren’t listed.

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