IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0773796
(2001-02-01)
|
발명자
/ 주소 |
- Rosthauser, James W.
- Detlefsen, William D.
|
출원인 / 주소 |
- Bayer Corporation, Borden Chemical Inc.
|
대리인 / 주소 |
Gil, Joseph C.Brown, N. Denise
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
27 |
초록
▼
This invention relates to a process for the production of composite wood products. This process comprises a) applying a binder composition to wood particles, and b) molding or compressing the wood particles treated with the binder to form a composite wood product. Suitable binder compositions compri
This invention relates to a process for the production of composite wood products. This process comprises a) applying a binder composition to wood particles, and b) molding or compressing the wood particles treated with the binder to form a composite wood product. Suitable binder compositions comprise a polymethylene poly(phenyl isocyanate) and a solid resole resin.
대표청구항
▼
1. A process for the production of wood composite materials comprising: A) combining wood particles with (1) a polymethylene poly(phenylisocyanate) having a functionality of about 2.1 to about 3.5, and an NCO group content of from about 25 to 33%, and a monomer content of from about 30% to 90% by
1. A process for the production of wood composite materials comprising: A) combining wood particles with (1) a polymethylene poly(phenylisocyanate) having a functionality of about 2.1 to about 3.5, and an NCO group content of from about 25 to 33%, and a monomer content of from about 30% to 90% by weight, wherein the content of the monomer comprises up to about 5% by weight of the 2,2'-isomer, from about 1 to about 20% by weight of the 2,4'-isomer, and from about 25 to about 65% by weight of the 4,4'-isomer, based on the entire weight of the polyisocyanate; B) coating the combination formed in A) with (2) a solid resole resin; and C) molding or compressing the coated combination formed in B); wherein components (1) and (2) are present in amounts such that there is from 1 to 25% by weight, based on the total weight of the wood composite, of components (1) and (2), and the weight ratio of component (2) to component (1) is from 1:3 to 10:1. 2. The process of claim 1, wherein components (1) and (2) are present in amounts such that there is from 2 to 10% by weight, based on the total weight of the wood composite, of components (1) and (2). 3. The process of claim 1, wherein components (1) and (2) are present in amounts such that there is from 3 to 8% by weight , based on the total weight of the wood composite, of components (1) and (2). 4. The process of claim 1, wherein the weight ratio of component (2) the solid resole resin to component (1) the polymethylene poly(phenylisocyanate) is from 3:1 to 7:1. 5. The process of claim 1, wherein A)(1) said polymethylene poly(phenyl isocyanate) has a viscosity of less than about 2,000 cps at 25° C. 6. The process of claim 1, wherein component A)(1) said polymethylene poly(phenylisocyanate) has a functionality of about 2.3 to 3.0, an NCO group content of about 30 to 33%, and a monomer content of about 40 to 70%. 7. A process for the production of wood composite materials comprising: A) combining wood particles with (2) a solid resole resin; B) coating the combination formed in A) with (1) a polymethylene poly(phenylisocyanate) having a functionality of about 2.1 to about 3.5, and an NCO group content of from about 25 to 33%, and a monomer content of from about 30% to 90% by weight, wherein the content of the monomer comprises up to about 5% by weight of the 2,2'-isomer, from about 1 to about 20% by weight of the 2,4'-isomer, and from about 25 to about 65% by weight of the 4,4'-isomer, based on the entire weight of the polyisocyanate; and C) molding or compressing the coated combination formed in B); wherein components (1) and (2) are present in amounts such that there is from 1 to 25% by weight, based on the total weight of the wood composite, of components (1) and (2), and the weight ratio of component (2) to component (1) is from 1:3 to 10:1. 8. The process of claim 7, wherein components (1) and (2) are present in amounts such that there is from 2 to 10% by weight, based on the total weight of the wood composite, of components (1) and (2). 9. The process of claim 7, wherein components (1) and (2) are present in amounts such that there is from 3 to 8% by weight, based on the total weight of the wood composite, of components (1) and (2). 10. The process of claim 7, wherein the weight ratio of component (2) the solid resole resin to component (1) the polymethylene poly(phenylisocyanate) is from 3:1 to 7:1. 11. The process of claim 7, wherein A)(1) said polymethylene poly(phenyl isocyanate) has a viscosity of less than about 2,000 cps at 25° C. 12. The process of claim 7, wherein component A)(1) said polymethylene poly(phenylisocyanate) has a functionality of about 2.3 to 3.0, an NCO group content of about 30 to 33%, and a monomer content of about 40 to 70%.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.