Method for the manufacture of cellulosic fibrous material which

Details Method for the manufacture of cellulosic fibrous material which Method for the manufacture of cellulosic fibrous material which

1979-10-17

1981-09-22

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

264115, 264118, 264120, 264122, 264241, D04H 120

Patent

active

042909880

ABSTRACT:
Cellulosic fibrous material which can be pressed into moulded parts is manufactured from cellulose-containing material which is separated into a fibrous material, the separated fibrous material then being mixed with a binding agent (particularly a combination of thermoplastic and thermosetting substances) and formed into a fleece which is compressed under heat action. The cellulose-containing starting material is derived from waste cellulosic fibrous material and such waste material is cut up and ground in a dry state and the bonding agent is added in particulate form also in the dry state.
An apparatus is described which has a pre-pulverizing apparatus, a mixing chamber, a grinder, an endless fleece conveyor, a forming head, a heating apparatus and a pressing apparatus.
The resulting cellulosic fibrous material can be pressed into moulded parts between pressing tolls in the dry state and with a single pressing stroke.

REFERENCES:
patent: 2152901 (1939-04-01), Manning
patent: 2161224 (1939-06-01), Berghoff
patent: 3492388 (1970-01-01), Inglin-Knusel
patent: 3880975 (1975-04-01), Lundmark
patent: 3927235 (1975-12-01), Chow

Affiliated with

Also associated with

Rating

Method for the manufacture of cellulosic fibrous material which does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the manufacture of cellulosic fibrous material which , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the manufacture of cellulosic fibrous material which will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-334951