IPC分类号：
A47C27/06 | A47C27/20 | F16F1/36 | F16F3/08 | F16F3/087
国民经济行业分类号：
C2190 | C2049 | C2043 | C2042
当前申请(专利权)人：
WARNER BABCOCK INSTITUTE FOR GREEN CHEMISTRY, LLC
原始申请(专利权)人：
WARNER BABCOCK INSTITUTE FOR GREEN CHEMISTRY, LLC
当前申请(专利权)人地址：
100 Research Drive,Wilmington, MA 01887 US
发明人：
WARNER, JOHN, C. | WHITEFIELD, JUSTIN, R. | POLLEY, JENNIFER, DAWN | STOLER, EMILY, JENNIFER
代理人：
MCGOWAN, MALCOLM, K. ET AL.
摘要：
Provided herein are triple-helical coil springs for use in cushions and mattresses, alternative to polyurethane-based foam cushioning.
权利要求：
What is claimed is:
1. A cushion comprising:
a skeleton comprising a plurality of springs comprising biodegradable material;
means for connecting at least two of the springs; and
a biodegradable tissue; wherein
the tissuejs disposed in the skeleton.
2. The cushion of claim 1 wherein the springs and the connecting means are comprised of the same material.
3. The cushion of claim 2 wherein the connected springs are printed by a 3-D matrix
printer.
4. The cushion of claim 1, wherein springs are comprised of polylactic acid, acrylonitrile butadiene styrene, polylactic acid-polyhydroxyalkanoate, and mixtures thereof.
5. The cushion of claim 1 wherein the springs are helical.
6. The cushion of claim 5 wherein the helices are double helices.
7. The cushion of claim 5 wherein the helices are triple helices.
8. The cushion of claim 1 wherein the tissue comprises a low-density, high-void volume material.
9. The cushion of claim 8, wherein the low-density, high-void volume material comprises one or more of a natural polymer, a synthetic polymer, and a crosslinkable resin.
10. The cushion of claim 8, wherein the low-density, high volume material is a cellulosic material.
11. The cushion of claim 10, wherein the cellulosic material is a microfibular cellulose.
12. The cushion of claim 11, wherein the cellulosic material is lyophilized.
13. The cushion of claim 8 wherein the tissue further comprises up to 15 wt% of chitosan.
14. The cushion of claim 8, wherein the tissue further comprises up to 50 wt% of a filler selected from the group consisting of paper pulp and sawdust.
15. The cushion of claim 1, further comprising ligaments which attach the tissue to the skeleton.
16. The cushion of claim 15, wherein the ligaments comprise reactive groups which bond to the tissue through contact, or by exposure to heat or light.
17. The cushion of claim 16, wherein the reactive groups comprise anhydride or carboxylic acid linkages.
18. A cushion comprising
two or more biodegradable skeleton subunits, and
a biodegradable tissue disposed in the subunits;
each subunit comprising
a skeleton comprising a plurality of biodegradable springs; and
means for connecting at least two of the springs.