[특허]Extruded animal litters having an increased absorption rate

Extruded animal litters having an increased absorption rate 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A01K-029/00 A01K-001/015
출원번호	US-0931247 (2011-01-27)
등록번호	US-8904963 (2014-12-09)
발명자 / 주소	Dixon, Dan Kenneth Huck, Nathan Foster
출원인 / 주소	Nestec S.A.
대리인 / 주소	Lappin, Julie M.
인용정보	피인용 횟수 : 0 인용 특허 : 37

초록 ▼

The invention provides animal litters that have an increased absorption rate and methods of making and using such litters. The animal litters comprise one or more animal litter particles that have been produced by fragmenting extruded animal litter particles that have a film on the surface of the particle that adversely affects the absorption rate. The fragmenting exposes the interior of the extruded animal litter particles, which does not have this film, to the external environment and increases the absorption rate.

대표청구항 ▼

1. An animal litter having an increased absorption rate, the animal litter comprising: a particle including one or more clays and one or more starches, wherein the particle has an expanded cellular structure with (i) interior cells that are less dense than the clay(s) alone;(ii) a film comprising surface cells that have a relatively closed structure and are less permeable than the interior cells; and(iii) a fragmented surface region that is substantially free of the film and exposes the interior cells. 2. The animal litter of claim 1 wherein the expanded cellular structure includes from about 10 to about 90% of one or more clays and from about 90 to about 10% of one or more starches. 3. The animal litter of claim 2 wherein the clays are non-swelling clays, swelling clays, or combinations thereof. 4. The animal litter of claim 2 wherein the starches are amylose, amylopectin, or combinations thereof. 5. The animal litter of claim 1 wherein the particle has a surface area that is at least 10% greater than the surface area of an extruded animal litter particle lacking a fragmented surface region. 6. The animal litter of claim 1 wherein the particle has a surface area that is at least 30% greater than the surface area of an extruded animal litter particle lacking a fragmented surface region. 7. The animal litter of claim 1 wherein the particle has a surface area that is at least 50% greater than the surface area of an extruded animal litter particle lacking a fragmented surface region. 8. The animal litter of claim 1 wherein the animal litter particles further comprise a partial or complete coating of one or more swelling clays. 9. The animal litter of claim 8 wherein the swelling clay is bentonite. 10. The animal litter of claim 8 wherein the swelling clay comprises from about 5 to about 40% of the litter. 11. An animal litter comprising a combination of the animal litter of claim 1 and a different material capable of functioning as an animal litter. 12. The animal litter of claim 11 wherein the combination comprises from about 5 to about 95% of the animal litter of claim 1 and from 95 to about 5% of the different material. 13. The animal litter of claim 11 wherein the different material is a litter made from swelling clay, non-swelling clay, silica gel, or combination thereof. 14. A method for making an animal litter composition, the method comprising: forming a mixture comprising one or more clays and one or more starches;extruding the mixture to form a particle having an expanded cellular structure with (i) interior cells that are less dense than the clay(s) alone; and ii a film comprising surface cells that have a relatively closed structure and are less permeable than the interior cells; andfragmenting the particle to expose the interior cells. 15. The method of claim 14 wherein the particle is fragmented by one or more of cutting, crushing, or breaking. 16. The method of claim 14 wherein the film covers at least 10% of the surface prior to fragmenting. 17. The method of claim 14 wherein the film covers at least 50% of the surface prior to fragmenting. 18. The method of claim 14 wherein the film covers at least 70% of the surface prior to fragmenting. 19. The method of claim 14 wherein the film covers at least 90% of the surface prior to fragmenting. 20. The method of claim 14 wherein the particle has a surface area that is at least 10% greater after fragmenting. 21. The method of claim 14 wherein the particle has a surface area that is at least 30% greater after fragmenting. 22. The method of claim 14 wherein the particle has a surface area that is at least 50% greater after fragmenting.

이 특허에 인용된 특허 (37)

Ducharme Cyril L. (3405 High Ln. Long Lake MN 55356) Eickhof Ralph C. (Union Lake Erskine MN) Heider David A. (776 Fairmount Ave. St. Paul MN 55105) Neiberger Denny W. (5238 Holiday Rd. Minnetonka MN, Absorbent composition, and method of making same.
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Swank, Richard B., Agglomerated animal litter and manufacturing process for the same.
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Trinh Toan ; Tordil Helen Bernardo ; Chung Alex Haejoon ; Harvey George Joseph ; Liu Zaiyou ; Mowry Leslie A., Animal care system and litter with reduced malodor impression.
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Raymond, Marvin L.; Woodbury, Anne D., Animal litter composition containing silica gel and methods therefor.
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Raymond, Marvin L.; Woodbury, Anne D., Animal litter composition containing silica gel and methods thereof.
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Elazier-Davis Carol (Oak Park IL) Beall Gary W. (Island Lake IL) Hughes John (Long Grove IL), Extruded smectite clay clumping animal litter having improved clump strength.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Extruded animal litters having an increased absorption rate 원문보기

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Extruded animal litters having an increased absorption rate 원문보기

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