US 11,884,785 B2 · Bio-based elastomer composition and film and laminate prepared therefrom

Abstract

The present invention discloses a composition for preparing bio-based elastomer film with high moisture permeability, and a bio-based elastomer film and a laminate therefrom, wherein the composition comprises: 5%-95% bio-based elastomer material, 0-80% resin polymer, 0.01-90% inorganic powder material having a particle size within 100 μm and/or organic low molecular material having a molecular weight within 2000 Daltons, and 0-10% organic anti-blocking agent (dispersant). The bio-based elastomer film and laminate of the present invention have excellent moisture permeability and mechanical performance, which can be widely used in various fields including outdoor sporting goods, clothing, medical treatment, food packaging and shoe materials, and which are environmentally friendly and green products.

Claims10

Dependent claims

A composition for preparing a bio-based elastomer film with a moisture permeability of 100,000 g/m2*24 h or more, wherein the composition comprises:

5 wt % to 80 wt % bio-based nylon elastomer material,
5 wt % to 80 wt % polymer resin,
5 wt % to 10 wt % inorganic powder material with a particle diameter less than 100 μm,
5 wt % to 13 wt % organic low molecular material with a molecular weight less than 1000 Daltons selected from the group consisting of polyols and their derivatives, and polyfunctional organic molecules with active epoxy group and their derivatives in which the number of functional groups is 2-10, and
0.5 wt % to 0.8 wt % organic dispersant selected from the group consisting of fatty acid, aliphatic amide, and ester.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/432,666Filed 19 Dec 2019

Priority

CN 201910137382.525 Feb 2019

Published

US 2022/0169806 A12 Jun 2022

Granted

30 Jan 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification54 codes

C08J 5/18
Manufacture of articles or shaped materials containing macromolecular substances: manufacture of films or sheets
B32B 5/02
Layered products characterised by the non- homogeneity or physical structure , i.e. comprising a fibrous, filamentary, particulate or foam…
B32B 5/022
Characterised by structural features of a fibrous or filamentary layer: non-woven fabric
B32B 7/14
Using interposed adhesives or interposed materials with bonding properties: applied in spaced arrangements, e.g. in stripes

Bio-based elastomer composition and film and laminate prepared therefrom

Life of this patent

Bio-based elastomer composition and film and laminate prepared therefrom

Life of this patent

Abstract

Claims10