Flushable fiber compositions comprising modified polypropylene and modified poly (ethylene oxide) and process for making the same
First Claim
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1. A fiber composition comprising modified polypropylene and modified poly(ethylene oxide).
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Abstract
A fiber composition which comprises a blend of modified polypropylene and modified poly(ethylene oxide). This fiber composition can be melt-processed to make fibers useful in flushable personal care products. A process for making this fiber composition is also provided.
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Citations
38 Claims
- 1. A fiber composition comprising modified polypropylene and modified poly(ethylene oxide).
- 8. A flushable personal care product comprising a fiber composition comprising modified polypropylene and modified poly(ethylene oxide).
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17. A fiber comprising modified polypropylene microfibers in a continuous phase of modified poly(ethylene oxide).
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19. A fiber comprising modified poly(ethylene oxide) microfibers in a continuous phase of modified polypropylene.
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21. A reactive blending process for the manufacture of a fiber composition, wherein the process comprises modifying polypropylene and poly(ethylene oxide), in the presence of a polar vinyl monomer and a free radical initiator, under heat and mechanical shear conditions, and wherein:
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A. the ratio of polypropylene;
poly(ethylene oxide) is from 1;
99 to 99;
1 by weight;
B. the polypropylene has a melt flow rate of about 0.1 to 500 grams/10 minutes at 230°
C.;
C. the poly(ethylene oxide) has a molecular weight of about 100,000 to about 8,000,000 grams/mole;
D. from about 0.1 to about 30 percent, based on the total weight of the polypropylene and poly(ethylene oxide), of a polar vinyl monomer is added; and
E. from about 0.1 to about 2 percent, based on the total weight of the polypropylene and poly(ethylene oxide), of a free radical initiator is added. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification