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Melt blowing intermixed filaments of two different polymers 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B29F-003/04
출원번호 US-0541504 (1975-01-16)
발명자 / 주소
  • Page Robert E. (Davis IL)
출원인 / 주소
  • Beloit Corporation (Beloit WI 02)
인용정보 피인용 횟수 : 68  인용 특허 : 0

초록 ▼

A plastic extrusion mechanism having a die head primarily for use in a melt-blown process with the head formed in two mating parts respectively having first and second chambers therein with separate plastic heaters and pressure delivery extruder screws connected thereto and an insulated wall between

대표청구항 ▼

A plastic extrusion mechanism comprising in combination: a die head having a first chamber for a first plastic and a second chamber for a second plastic; a plurality of first small extrusion passages leading from the first chamber to first openings arranged in a row; a plurality of second small extr

이 특허를 인용한 특허 (68)

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