Cellulase composition containing cellulase and papermaking polymers for paper dry strength application
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
D21H-017/37
C12N-009/42
D21C-005/00
D21C-009/00
D21H-011/18
D21H-017/00
D21H-017/33
D21H-021/06
D21H-021/08
D21H-021/18
D21H-017/22
D21H-027/30
출원번호
US-0048404
(2013-10-08)
등록번호
US-9011643
(2015-04-21)
발명자
/ 주소
Gu, Qu-Ming
Sutman, Frank J.
출원인 / 주소
Solenis Technologies L.P.
대리인 / 주소
Rossi, Joanne
인용정보
피인용 횟수 :
6인용 특허 :
7
초록▼
Disclosed herein are cellulase compositions useful as papermaking performance additives for improving paper dry strength of a paper product and reducing refining energy in papermaking processes, and improving paper production. These cellulase compositions are formulated using cellulase, papermaking
Disclosed herein are cellulase compositions useful as papermaking performance additives for improving paper dry strength of a paper product and reducing refining energy in papermaking processes, and improving paper production. These cellulase compositions are formulated using cellulase, papermaking contaminant control polymers, protein stabilizers and cellulase enhancers. These cellulase compositions measure higher in endo-cellulase activity with better stability than conventional cellulase, and have shown differentiating performance in improving paper dry strength properties versus cellulase alone.
대표청구항▼
1. A composition for treating cellulosic fibers used to make paper or paperboard comprising: a) cellulase, wherein the active cellulose concentration is from about 2% by wt. of total composition to about 80% by wt. of total composition; andb) contaminant control polymer(s);wherein the contaminant co
1. A composition for treating cellulosic fibers used to make paper or paperboard comprising: a) cellulase, wherein the active cellulose concentration is from about 2% by wt. of total composition to about 80% by wt. of total composition; andb) contaminant control polymer(s);wherein the contaminant control polymer(s) are selected from the group consisting of detackifier polymer(s) selected from the group consisting of poly(vinyl alcohol-co-vinyl acetate), hydrophobically end-capped polyethylene glycol, hydrophobically modified hydroxyethyl cellulose, hydrophobic/hydrophilic block copolymers, surface active proteins, whey protein, egg protein, soy protein, and mixtures thereof wherein the detackifier polymer is from about 2% by wt. of total composition to about 50% by wt. of total composition; wherein the active weight percentage of the cellulose active is considered 100% active as obtained from a commercial source. 2. The composition of claim 1, further comprising: cellulase protein stabilizer(s); and cellulase enhancer(s). 3. The composition according to claim 2, wherein the contaminant control polymer is a cationic fixative polymer, a hydrophobically modified cationic polymer, or an amphoteric polymer that are net cationic or mixtures thereof. 4. The composition of claim 2, wherein the cellulase enhancer is a metal ion salt selected from the group consisting of calcium chloride, zinc chloride, and magnesium chloride. 5. The composition according to claim 2, wherein the protein stabilizer content is from 0.1% by wt. of total composition to about 50% by wt. of total concentration, and the cellulase enhancer content is from 0.1% by wt. of total composition to about 0.5% by wt. of total composition; and wherein the active weight percentage of the active cellulase in the cellulase composition is considered 100% active as obtained from a commercial source; and wherein the active percentages of the contaminant control polymer, the protein stabilizer and cellulose enhancer in the cellulase composition are defined as non-aqueous parts of these polymers or chemicals in the cellulase composition. 6. The composition according to claim 2, wherein the protein stabilizer content is from 0% by wt. of total composition to about 50% by wt. of total concentration, and the cellulase enhancer content is from 0% by wt. of total composition to about 0.5% by wt. of total composition; wherein the active weight percentage of the active cellulase in the cellulase composition is considered 100% active as obtained from a commercial source; andwherein the active percentages of the contaminant control polymer, the protein stabilizer and cellulase enhancer in the cellulase composition are defined as non-aqueous parts of these polymers or chemicals in the cellulase composition. 7. The composition according to claim 2, wherein the cellulase is a mono-component endo-cellulase; the contaminant control polymer is selected from the group consisting of cationic fixative polymer(s), poly(vinyl acetate-co-vinyl) alcohol, hydrophobically end-capped polyethylene glycol or mixtures thereof; the cellulose stabilizer is a propylene glycol, glycerol, sorbitol or mixtures thereof: and the cellulase enhancer is calcium chloride. 8. The composition of claim 1, wherein the cellulase is an endo-cellulase. 9. The composition of claim 8, wherein the endo-cellulase is a mono-component endo-cellulase. 10. The composition of claim 1, wherein the cellulase is a multi-component cellulase.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (7)
Sarkar Jawed M. (Naperville IL) Cosper David R. (Downers Grove IL), Application of enzymes and flocculants for enhancing the freeness of paper making pulp.
Hill, Jr., Walter B.; Barclay, Richard L.; O'Malley, James A.; Conrod, Randall W.; Desjardins, John; Plourde, Roger M., Paper making processes using enzyme and polymer combinations.
Castro, David J.; Lowe, Robert M.; Liu, Mei, Method of increasing paper bulk strength by using a diallylamine acrylamide copolymer in a size press formulation containing starch.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.