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EP0070708A2
Expired / Lapsed
EP
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Paper-making belts of fused polymeric filaments
Assignee: EIDP Inc
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Filing: 1982-07-16
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Granted: —
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Expires: 2002-07-16
Abstract
Abstract A woven paper-making belt in which the filaments in at least one of the machine and transverse directions are coextruded monofilaments.
Inventors
- 👤 John Edward Hansen
- 👤 Fontaine Theodore Kremer, Jr.
- 👤 Robert Lee Rackley
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 14:38
CPC Classifications
D; D01; D01F; D01F8/00; D01F8/04; D01F8/12; D01F8/14; D21; D21F; D21F1/00; D21F1/0027; D10; D10B; D10B2401/00; D10B2401/04; D10B2401/041
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
145 words
A woven, heat set, paper-making belt of machine and transverse direction thermoplastic filaments, characterised in that the filaments in at least one of the directions machine and transverse are coextruded monofilaments having a core of a polymer selected from nylon 66; polyethylene terephthalate; and a tetrapolymer of tere- and isophthalic acids, 1,4-butane diol and polytetramethylene ether glycol and a sheath of a polymer selected from the'group consisting of nylon 11; nylon 12; nylon 6; nylon 610; nylon 612; polybutylene terephthalate; and a tetrapolymer of tere- and iso- phthalic acids, 1,4-butane diol and polytetramethylene ether glycol wherein the sheath is adhered to the core and has a melting point at least about 25 Celsius degrees lower than the core, and wherein the machine and transverse direction filaments are bonded together at the intersections of the filaments by the substance of at least one of the filaments.
Claim 2
Dependent Claim
145 words
A woven, heat set, paper-making belt of machine and transverse direction thermoplastic filaments, characterised in that the filaments in at least one of the directions machine and transverse are coextruded monofilaments having a core of a polymer selected from nylon 66; polyethylene terephthalate; and a tetrapolymer of tere- and isophthalic acids, 1,4-butane diol and polytetramethylene ether glycol and a sheath of a polymer selected from the'group consisting of nylon 11; nylon 12; nylon 6; nylon 610; nylon 612; polybutylene terephthalate; and a tetrapolymer of tere- and iso- phthalic acids, 1,4-butane diol and polytetramethylene ether glycol wherein the sheath is adhered to the core and has a melting point at least about 25 Celsius degrees lower than the core, and wherein the machine and transverse direction filaments are bonded together at the intersections of the filaments by the substance of at least one of the filaments.
Claim 3
Dependent Claim
26 words
A paper-making belt as claimed in claim 1 wherein the core of the monofilament is nylon 66 and the sheath of the monofilament is nylon 612.
Claim 4
Dependent Claim
26 words
A paper-making belt as claimed in claim 1 wherein the core of the monofilament is nylon 66 and the sheath of the monofilament is nylon 11.
Claim 5
Dependent Claim
25 words
A paper-making belt as claimed in claim 1 wherein the core of the monofilament is nylon 66 and the sheath of the monofilament is nylon'12.
Claim 6
Dependent Claim
53 words
A paper-making belt as claimed in claim 1 wherein the core of the monofilament is polyethylene terephthalate and the sheath of the monofilament is a tetrapolymer of tere- and iso- phthalic acids, 1,4-butane diol and polytetramethylene ether glycol wherein the resulting butane diol terephthalate comprises about from 70 to 90% of the tetrapolymer.
Claim 7
Dependent Claim
30 words
A paper-making belt as claimed in any one of the preceding claims wherein the sheath of the monofilament comprises about from 5 to 50% by weight of the total monofilament.
Claim 8
Dependent Claim
24 words
A paper-making belt as claimed in claim 6 wherein the sheath of the monofilament comprises at least about 10% by weight of the monofilament.
Claim 9
Dependent Claim
25 words
A paper-making belt as claimed in any one of the preceding claims wherein the monofilaments in the transverse direction of the belt are coextruded monofilaments.
References Cited (Backward Citations)
No citation records indexed.
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