公开(公告)号：US3762564A

公开(公告)日：1973-10-02

申请号：US3762564D

申请日：1972-05-11

Applicant: ALLIED CHEM

Inventor： WEEDON G ,  COLLINGWOOD G ,  WINCKLHOFER R

IPC: B01D29/00 ,  B01D35/02 ,  B01D39/08

CPC classification number: B01D39/083 ,  B01D29/111 ,  B01D29/33 ,  B01D29/58 ,  B01D35/02 ,  B01D39/1623 ,  B01D2201/02 ,  B01D2239/0225 ,  B01D2239/0233 ,  B01D2239/0241 ,  B01D2239/04 ,  B01D2239/0407 ,  B01D2239/1291

Abstract: Filters for petroleum based liquids and the like are manufactured from heat-treated fabric composed of multicomponent fibers. In general the filter is characterized by light weight, corrosion resistance, compatibility with petroleum based liquids, low cost, dimensional stability and resistance to shock and other mechanical abuse.

Abstract translation: 用于石油基液体等的过滤器由由多组分纤维组成的热处理织物制成。 通常，过滤器的特征在于重量轻，耐腐蚀性，与石油基液体的相容性，低成本，尺寸稳定性和抗冲击和其他机械滥用。

公开(公告)号：US3737505A

公开(公告)日：1973-06-05

申请号：US3737505D

申请日：1971-05-28

Applicant: ALLIED CHEM

Inventor： TURNER G ,  SCHUETTLER R ,  VARINA F ,  COLLINGWOOD G

IPC: D01D5/253

CPC classification number: D01D5/253 ,  Y10T428/2931

Abstract: A BIFILAMENT YARN COMPRISING TWO SYMMETRICAL LOBES FUSED SO THAT THE CONCAVE SIDES INTERCEPT AT ANGLE 0 RANGING FROM 10 TO 54*. THE YARN HAS A BROAD CONCAVE AREA AND A NARROW EDGE AREA OF CONVEX SHAPE AND PREEFRABLY A MODIFICATION RATIO OF BETWEEN 1.65 AND 3.0. THIS BIFILAMENT YARN, TEXTURED AND NON-TEXTURED, SEMIDULL AND BRIGHT, WHEN CONVERTED TO PLAIN KNIT HOISERY HAS A LUSTER IN THE RANGE OF 6.6 TO 21 (K/SX100) UNITS. THE TEXTURED AND NON-TEXTURED PLAIN KNIT TEXTILE ARTICLES CONSISTING OF THE BIFILAMENT YARNS OF THIS INVENTION AFTER REPETITIVE ELONGATIONS OF 25 PERCENT HAVE 150-300 PERCENT GREATER WORK OF RECOVERY AND EQUAL IMPROVEMENT IN RESISTANCE TO SAGGING AND WRINKLING THAN OTHER CROSS-SECTIONAL CONFIGURATIONS. THE BIFILAMENT YARNS ARE PREPARED BY MELT SPINNING THERMOPLASTIC HOMOPOLYMERS HAVING A RELATIVE FORMIC ACID VISCOSITY OF 25 TO 90 AT A TEMPERATURE OF 250-280*C. THROUGH TWIN ORIFICES SEPARATED FROM EACH OTHER FOR A DISTANCE OF 0.05 TO 4.0 MILS.

公开(公告)号：US3731815A

公开(公告)日：1973-05-08

申请号：US3731815D

申请日：1972-04-26

Applicant: ALLIED CHEM

Inventor： COLLINGWOOD G ,  WINCKLHOFER R ,  WEEDON G

IPC: B01D29/00 ,  B01D35/02 ,  C10G31/09 ,  B01D39/10

CPC classification number: C10G31/09 ,  B01D29/33 ,  B01D29/58 ,  B01D35/023

Abstract: Filters for petroleum based liquids and the like are manufactured from heat-treated fabric composed of filaments prepared from blended composite fibers. In general the filter is characterized by light weight, corrosion resistance, compatibility with petroleum based liquids, low cost, dimensional stability, and resistance to shock and other mechanical abuse.

Abstract translation: 用于石油基液体等的过滤器由由由混合的复合纤维制成的长丝组成的热处理织物制成。 通常，过滤器的特征在于重量轻，耐腐蚀性，与石油基液体的相容性，低成本，尺寸稳定性，以及耐冲击和其它机械性的滥用。