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    Alkyl and aryl phosphites to inhibit ozone fading of dyed polyamides
    2.
    发明授权
    Alkyl and aryl phosphites to inhibit ozone fading of dyed polyamides 失效
    烷基和亚芳基磷酸酯抑制臭氧多糖加成

    公开(公告)号：US3844713A

    公开(公告)日：1974-10-29

    申请号：US24306172

    申请日：1972-04-11

    申请人： ALLIED CHEM

    发明人： SAUNDERS P ,  DEMENTI B ,  LOFQUIST R

    IPC分类号： D06P1/667 ,  D06P5/17 ,  D06P5/00

    CPC分类号： D06P1/667 ,  D06P5/17 ,  Y10S8/924 ,  Y10S8/929

    摘要： When from about 0.7 percent to about 3 percent of organic phosphites are coated on nylon fiber, or are added to the polymer prior to spinning, improved dyefastness is achieved compared to an untreated dyed nylon fiber when this fiber is exposed to ozone.

    摘要翻译： 当约0.7％至约3％的有机亚磷酸酯涂覆在尼龙纤维上时，或者在纺丝之前加入到聚合物中，与未经处理的染色尼龙纤维相比，当该纤维暴露于臭氧时，可获得改善的耐染色性。

    Cationic dyeable polyamide of improved physical properties
    3.
    发明授权
    Cationic dyeable polyamide of improved physical properties 失效
    改进的物理性能的阳离子可聚酰胺

    公开(公告)号：US3828009A

    公开(公告)日：1974-08-06

    申请号：US28662972

    申请日：1972-09-06

    申请人： ALLIED CHEM

    发明人： LOFQUIST R

    IPC分类号： C08G69/00 ,  C08G69/02 ,  C08G69/08 ,  C08G69/42 ,  C08G20/18

    CPC分类号： C08G69/42 ,  C08G69/02

    摘要： A CATIONIC-DYEABLE POLYAMIDE, POLYMERIZED FROM WAMINOCARBOXYLIC ACIDS OR THEIR LACTAMS, OF IMPROVED PHYSICAL PROPERTIES CAN BE MADE BY USING FROM 0.30 TO 0.85 MOLE PERCENT (BASED ON THE POLYAMIDE) OF THE SODIUM SALT OF A DIACID SUCH AS 5-SULFOISOPHTHALIC ACID AND 0.10 TO 0.65 MOLE PERCENT OF AN N-SULFOALKYL ALKYLDIAMINE SUCH AS N-(4-SULFOBUTYL)HEXAMETHYLENEDIAMINE, OR N(2-SULFOETHYL)M-XYLYLENEDIAMINE. A POLYAMIDE RESULTS CONTAINING THE RESPECTIVELY SAME NUMBER OF SULFO GROUPS, BUT WITH LESS DILUENT AND CONSEQUENTLY HAVING A HIGHER MELTING POINT. THE DIACID CAN BE A SULFONATE DERIVATIVE OF A PHTHALIC ACID, OR OF FLUORENE, ETC. THE DIAMINE CAN BE A SULFONATE DERIVATIVE OF HEXAMETHYLENEDIAMINE, METAZYLYLENEDIAMINE, ETC. THE USE OF THE COMBINATION OF ADDITIVES ELIMINATES THE NECESSITY OF ADDING A DIAMIE OR DICARBOXYLIC ACID TO ACHIEVE FULL POLYMERIZATION.

    Method of preparing cationic dyeable polycaprolactam
    6.
    发明授权
    Method of preparing cationic dyeable polycaprolactam 失效
    制备阳离子可聚合聚碳酸酯的方法

    公开(公告)号：US3709865A

    公开(公告)日：1973-01-09

    申请号：US3709865D

    申请日：1971-04-01

    申请人： ALLIED CHEM

    发明人： LOFQUIST R ,  CRESCENTINI L ,  WINCKLHOFER R

    IPC分类号： C08G69/42 ,  C08G20/12

    CPC分类号： C08G69/42

    摘要： CATIONIC DYEABLE POLYCAPROLACTAM IS PREPARED BY ADDING FROM 0.5 TO 2.0 MOLE PERCENT OF N-SULFOBUTYLHEXAMETHYLENEDIAMINE OR THE ALKALI SALT THEREOF WITH PREFERABLY 0.5 TO 2.6 MOLE PERCENT (ON TOTAL MOLES OF LACTAM) OF AZELAIC ACID, THE EXCESS OF FIACID OVER DIAMINE BEING PREFERABLY SUCH THAT THE POLYAMIDE HAS ZERO TO 80 MORE EQUIVALENTS TO ACID OVER AMINE PER 106 GRAMS OF POLYMER. ALSO, LESS THAN 30 EQUIVALENT OF AMINO END GROUPS ARE PREFERRED. IN THE PLACE OF AZELATE ACID MAY BE USED AN ALKALI SALT OF AZELIC ACID SUCH AS LITHIUM HYDROGEN AZELATE, OR MIXTURE OF IDSODIUM AZELATE WITH AZELAIC AID. THE DIALKYL ESTER SUCH AS DIMETHYL AZELATE OF AZELAIC ACID CAN ALSO BE USED. IN PLACE OF AZELAIC ACID OR ITS EQUIVALENTS AS MENTIONED ABOVE, THE SAME NUMBER OF EQUIVALENT OF DIMER ACID, FORMED BY DIMERIZATION OF OLEIC ACID, CAN NE USED. ALKALI CATION MAY ALSO BE ADDED BY ADDING ALKALI OXIDE, HYDROXIDE, CARBON OR BICARBONATE.