US6179879B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leather impregnated with temperature stabilizing material and method for producing such leather
Assignee: Acushnet Co
•
Filing: 1999-03-24
•
Granted: 2001-01-30
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Expires: 2019-03-24
Abstract
Abstract The present invention is directed towards a tanned leather product that is impregnated with a plurality of microspheres containing a temperature stabilizing material. The present invention is also directed to a tanning process for embedding the microspheres into the leather. The thermal stabilizing material is a phase change material that allows the leather to have enhanced thermal properties when exposed to heat or cold.
Inventors
- 👤 Douglas K. Robinson
- 👤 John J. Erickson
- 👤 Michael Redwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:21
CPC Classifications
C; C14; C14C; C14C3/00; C14C3/02; C14C3/08; C14C3/18; A; A43; A43B; A43B1/00; A43B17/00; A43B17/003; A43B23/00; A43B23/02; A43B23/0205; A43B23/021; A43B23/0225; C14C3/04; C14C3/06; C14C9/00; Y; Y10; Y10T; Y10T428/00; Y10T428/4935
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
48 words
A tanned leather comprising: an internal fiber matrix; a plurality of microspheres containing a temperature stabilizing material, said microspheres being disposed and embedded within the fiber matrix in a sufficient amount so that the microspheres enhance the thermal stability of the leather when subject to heat or cold.
Claim 2
Dependent Claim
48 words
A tanned leather comprising: an internal fiber matrix; a plurality of microspheres containing a temperature stabilizing material, said microspheres being disposed and embedded within the fiber matrix in a sufficient amount so that the microspheres enhance the thermal stability of the leather when subject to heat or cold.
Claim 3
Dependent Claim
16 words
The leather of claim 1 , wherein the temperature stabilizing material is a phase change material.
Claim 4
Dependent Claim
17 words
The leather of claim 1 , wherein the temperature stabilizing material is a plurality of plastic crystals.
Claim 5
Dependent Claim
17 words
The leather of claim 1 , wherein the amount is about 3% to about 15% by weight.
Claim 6
Dependent Claim
16 words
The leather of claim 1 , wherein the microspheres are bonded to the internal fiber matrix.
Claim 7
Dependent Claim
19 words
The leather of claim 1 , wherein it is incorporated in a product selected from clothing, gloves, or shoes.
Claim 8
Dependent Claim
16 words
The leather of claim 1 , wherein the leather is a leather product in a vehicle.
Claim 9
Dependent Claim
16 words
The leather of claim 1 , wherein the leather is incorporated into an article of furniture.
Claim 10
Dependent Claim
14 words
The leather of claim 6 , wherein the leather is incorporated into a shoe.
Claim 11
Dependent Claim
17 words
The leather of claim 9 , wherein the leather is incorporated into a tongue of a shoe.
Claim 12
Dependent Claim
17 words
The leather of claim 9 , wherein the leather is incorporated into an insole of a shoe.
Claim 13
Independent Claim
92 words
A method of impregnating a material selected from skins and hides, wherein the method comprises the steps of: placing the material in a container; adding a tanning agent to the container; combining a plurality of microspheres containing a temperature stabilizing material with a liquid to form a suspension; adding the suspension to the container; and agitating the contents of the container until a portion of the micorspheres are disposed and embedded within the fiber matrix so that the microspheres enhance the thermal stability of the material when subjected to head or cold.
Claim 14
Independent Claim
92 words
A method of impregnating a material selected from skins and hides, wherein the method comprises the steps of: placing the material in a container; adding a tanning agent to the container; combining a plurality of microspheres containing a temperature stabilizing material with a liquid to form a suspension; adding the suspension to the container; and agitating the contents of the container until a portion of the micorspheres are disposed and embedded within the fiber matrix so that the microspheres enhance the thermal stability of the material when subjected to head or cold.
Claim 15
Dependent Claim
12 words
The method of claim 12 , wherein the material is raw skins.
Claim 16
Dependent Claim
12 words
The method of claim 12 , wherein the material is tanned skins.
Claim 17
Dependent Claim
13 words
The method of claim 12 , wherein the container is a rotating drum.
Claim 18
Dependent Claim
16 words
The method of claim 12 , wherein the temperature stabilizing material is a phase change material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-01-30 | 2004-07-31 | 2005-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-01-30 | 2008-07-31 | 2009-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-01-30 | 2012-07-31 | 2013-01-30 | $7700.00 | Window Closed / Lapsed |