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Home › Stain-resistant nylon carpets impregnated with condensation product of formaldehyde with mixture of diphenolsulfone and phenolsulfonic acid

Stain-resistant nylon carpets impregnated with condensation product of formaldehyde with mixture of diphenolsulfone and phenolsulfonic acid

US Patent 4592940 · Granted Jun 3, 1986

Estimated economic value: $16,657,000 ⓘ

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