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Polyurethane foams made with vegetable oil hydroxylate, polymer polyol and aliphatic polyhydroxy alcohol

A technology of polyurethane foam and aliphatic polyol, which is applied in the field of polyurethane, can solve the problems such as the application of aliphatic polyol, the reduction of tearing properties and elongation properties of foam materials, etc.

Inactive Publication Date: 2006-11-08
BAYER MATERIALSCIENCE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is well known that most crosslinking agents result in reduced tear and elongation properties of foams made from standard petroleum-derived polyols and polymer polyols
The use of aliphatic polyol crosslinkers with polyols derived from renewable resources in the presence of polymer polyols has not been discussed in the art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The present invention is further illustrated by the following examples, but the present invention is not limited by these examples, wherein, unless otherwise indicated, all amounts given in "parts" and "percentages" should be understood as by weight. Foam was prepared using the following components:

[0045] Polyol A is a polyether polyol with a hydroxyl value of about 28, which can be catalyzed by KOH with epoxy

[0046] Propane block (84.5% by weight of total epoxides), followed by epoxy

[0047] The ethane block (accounting for 15.5% by weight in the total epoxide) further enhanced the sorbitol

[0048] It can be prepared by alkoxylation reaction;

[0049] Polyol B Biobased diol with a hydroxyl number of 54, available as SOYOYL R2-052 from

[0050] Purchased from Urethane Soy Systems;

[0051] Polyol C A polymer polyol having a hydroxyl number of about 18.5 and a solids content of 41% by weight, which

[0052]...

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Abstract

The present invention provides polyurethane foams made from a polyisocyanate and a polyol component containing a polymer polyol (PMPO), a vegetable oil hydroxylate and an aliphatic polyhydroxy alcohol, and optionally a non-vegetable oil-based polyol. The vegetable oil hydroxylates are environmentally-friendly, bio-based polyols. The inclusion of low amounts of a polymer polyol unexpectedly results in a foam having significantly improved tear strength. The combination of polymer polyol and aliphatic polyhydroxy alcohol provides improved foam processing while maintaining or improving tear strength of the foam.

Description

technical field [0001] The present invention relates generally to polyurethanes, and more particularly to polyurethane foams made from a polyol component comprising vegetable oil hydroxylates, polymer polyols (PMPOs) and aliphatic polyols. Background of the invention [0002] Polyurethane foams are already widely used in many industrial and consumer products. This popularity is attributed to polyurethane's broad mechanical properties and ability to be relatively easily manufactured. For example, automobiles include many polyurethane components such as seats, dashboards, and other cabin interior parts. Polyurethane foams are traditionally classified as flexible, semi-rigid, or rigid; flexible foams are generally softer, less dense, more flexible, and better able to withstand loads than rigid foams Structural springback occurs later. [0003] Methods for the preparation of polyurethane foams are well known to those skilled in the art. Polyurethane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/28C08G18/32C08G18/40C08G18/76C08G101/00
CPCC08G18/36C08G18/409C08G2101/00C08G18/28C08G18/40C08G18/4252C08J9/0004
Inventor B·D·考施瓦M·N·穆尔
Owner BAYER MATERIALSCIENCE AG