IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0979849
(1700-01-01)
|
우선권정보 |
EP-0110480 (1999-05-31) |
국제출원번호 |
PCT/EP00/04038
(2000-05-05)
|
발명자
/ 주소 |
- Parfondry, Alain
- Yu, Jianming
|
출원인 / 주소 |
- Huntsman International LLC
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
5 |
초록
▼
The invention relates to a polyol composition comprising by weight 60-97% of b1) a polyoxyethylene-polyoxypropylene polyol, having a functionality of 2-6, with 10-25% tipped EO, 3-40% of b2) a polyoxyethylene-polyoxypropylene polyol, having a functionality of 2-6, with 20-50% total EO and 10-20% tip
The invention relates to a polyol composition comprising by weight 60-97% of b1) a polyoxyethylene-polyoxypropylene polyol, having a functionality of 2-6, with 10-25% tipped EO, 3-40% of b2) a polyoxyethylene-polyoxypropylene polyol, having a functionality of 2-6, with 20-50% total EO and 10-20% tipped EO; and 0-25% of b3) a polyol, having a functionality of 2-6, with at least 50% random EO. The invention also relates to a process for preparing a flexible polyurethane foam by reacting a) a polyisocyanate composition; b) a polyol composition of the invention; c) water; and d) additives and auxiliaries known per se. The invention finally relates to a reaction system comprising A) a polyisocyanate and B) an isocyanate-reactive component comprising the polyol of the invention.
대표청구항
▼
1. A polyol composition comprising: b1) a polyoxyethylene-polyoxypropylene polyol, having an average nominal hydroxyl functionality of 2-6 where the EO is present as tipped EO, the EO content being between 10-25%; b2) a polyoxyethylene-polyoxypropylene polyol, having an average nominal hydroxy f
1. A polyol composition comprising: b1) a polyoxyethylene-polyoxypropylene polyol, having an average nominal hydroxyl functionality of 2-6 where the EO is present as tipped EO, the EO content being between 10-25%; b2) a polyoxyethylene-polyoxypropylene polyol, having an average nominal hydroxy functionality of 2-6, where the EO is present as tipped EO and random EO, the total EO content being between 20-50%, the tipped EO content being between 10-20%, b3) a polyol, having an average nominal hydroxy functionality of 2-6, and comprising EO and optionally PO where the EO is present as random EO, the EO content being at least 50%, these polyols b1, b2 and b3 being present according to the following proportions, based on the combined weights of b1, b2 and b3, b1: 60-97 wt %, b2: 3-40 wt %, b3: 0-25 wt %. 2. The polyol composition according to claim 1, which comprises the polyols b1, b2 and b3 according to the following proportions: b1: 65-90 wt %, b2: 10-30 wt %, b3: 0-10 wt %. 3. The polyol composition according to claim 1, in which the polyoxyethylene-polyoxypropylene polyol b2), the weight ratio tipped EO/random EO is between 1:3-3:1. 4. The polyol composition according to claim 1, wherein the polyol b2) is of the -PO-PO/EO-EO type. 5. The polyol composition of claim 1, wherein the polyol b2) is of the-PO/EO-EO type. 6. The polyol composition of claim 1, wherein the functionality if the polyol b1, b2 and b3 is 2-4. 7. The polyol composition of claim 1, wherein the polyol b3) is a polyoxyethylene polyol. 8. The polyol composition of claim 1, which comprises dispersed particles. 9. The polyol composition of claim 1, wherein the equivalent weight of polyols b1) and b2) is 1000-4000 and of polyol b3) is 200-3000. 10. Process for preparing a flexible polyurethane foam at an NCO index of 70-120 by reacting a) a polyisocyanate composition; b1) a polyoxyethylene-polyoxypropylene polyol, having an average nominal hydroxyl functionality of 2-6 where the EO is present as tipped EO, the EO content being between 10-25%; b2) a polyoxyethylene-polyoxypropylene polyol, having an average nominal hydroxy functionality of 2-6, where the EO is present as tipped EO and random EO, the total EO content being between 20-50%, the tipped EO content being between 10-20%, b3) a polyol, having an average nominal hydroxy functionality of 2-6, and comprising EO and optionally PO where the EO is present as random EO, the EO content being at least 50%, these polyols b1, b2 and b3 being present according to the following proportions, based on the combined weights of b1, b2 and b3, b1: 60-97 wt %, b2: 3-40 wt %, b3: 0-25 wt %; c) water; and d) additives and auxiliaries known per se. 11. The process according to claim 10, in which the polyols b1, b2 and b3 are used according to the following proportions: b1: 65-90 wt %, b2: 10-30 wt %, b3: 0-10 wt %. 12. The process according to claim 10, in which the polyoxyethylene-polyoxypropylene polyol b2), the weight ratio tipped EO/random EO is between 1:3-3:1. 13. The process of claim 10, wherein the polyol b2) is of the -PO-PO/EO-EO type. 14. The process composition of claim 10, wherein the polyol b2) is of the-PO/EO-EO type. 15. The process of claim 10, wherein the functionality of the polyols b1, b2 and b3 is 2-4. 16. The process of claim 10, wherein the polyol b3) is a polyoxyethylene polyol. 17. The process of claim 10, in which the polyol comprises dispersed particles. 18. The process of claim 10 wherein polyols b1) and b2) have an equivalent weight of 1000-4000 and polyol b3) of 200-3000 and polyisocyanate is diphenylmethane diisocyanate optionally comprising homologues thereof having an isocyanante functionality of 3 or more modified variants thereof. 19. A reaction system comprising A) a polyisocyanate and B) an isocyanate-reactive component comprising the polyol composition of claim 1 and water.
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