Unlock instant, AI-driven research and patent intelligence for your innovation.

Polydiorganosiloxane polyamide copolymers having organic soft segments

Copolymer, organic technology for use in the field of polydiorganosiloxane-polyamide copolymers and the preparation of said copolymers

Active Publication Date: 2012-11-21
3M INNOVATIVE PROPERTIES CO
View PDF37 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While such block copolymers have many desirable properties, some of them tend to degrade when subjected to high temperatures (e.g., 250°C or higher)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polydiorganosiloxane polyamide copolymers having organic soft segments
  • Polydiorganosiloxane polyamide copolymers having organic soft segments
  • Polydiorganosiloxane polyamide copolymers having organic soft segments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0224] Embodiment 1. A copolymer comprising: at least one repeating unit of formula I-a:

[0225]

[0226] and at least one repeating unit of formula VI-a:

[0227]

[0228] where: each R 1 are independently alkyl, haloalkyl, aralkyl, alkenyl, aryl or aryl substituted by alkyl, alkoxy or halogen; G is a residue with a valence of q; R 3 is hydrogen or alkyl, or R 3 Combined with G and the nitrogen they are connected together to form a heterocyclic group; each Y is independently an alkylene, aralkylene or a combination thereof; each B is independently a covalent bond, 4-20 Carbon alkylene, aralkylene, arylene or their combination; D is an organic soft segment residue; n is independently an integer of 0-1500; p is an integer of 1-10; q is greater than or An integer equal to 2.

Embodiment 2

[0229] Embodiment 2. The copolymer of embodiment 1, wherein the copolymer comprises: at least one repeating unit of formula I-b:

[0230]

[0231] and at least one repeating unit of formula VI-b:

[0232]

Embodiment 3

[0233] Embodiment 3. The copolymer of embodiment 1 or 2, wherein D comprises polyether residues.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
transmittivityaaaaaaaaaa
hazeaaaaaaaaaa
opacityaaaaaaaaaa
Login to View More

Abstract

Polydiorganosiloxane polyamide, block copolymers having organic soft segments and methods of making the copolymers are provided.

Description

technical field [0001] The present invention describes polydiorganosiloxane-polyamide copolymers having organic soft segments and processes for preparing the copolymers. Background technique [0002] Silicone polymers have unique properties derived primarily from the physical and chemical properties of the siloxane bond. These properties include low glass transition temperature, thermal and oxidative stability, resistance to ultraviolet radiation, low surface energy and hydrophobicity, high permeability to many gases, and biocompatibility. However, silicone polymers generally lack some tensile strength. [0003] The low tensile strength of silicone polymers can be improved by forming block copolymers. Some block copolymers contain "soft" silicone polymeric blocks or segments, as well as any of a variety of "hard" blocks or segments. Polydiorganosiloxane-polyamides and polydiorganosiloxypolyureas are exemplary block copolymers. [0004] Polydiorganosiloxane-polyamides can...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/26C08G77/04C08L83/04
CPCC08L83/10C08G77/455C09J183/10C08G77/54C08G69/42A61K8/90C08J5/18C08J2383/10C09J183/08C09J183/12Y10T428/1424Y10T428/1462Y10T428/31551Y10T428/31663
Inventor 奥德蕾·A·舍曼斯蒂芬·A·约翰逊理查德·G·汉森
Owner 3M INNOVATIVE PROPERTIES CO