EP0304825A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Continuous process for producing composite sheet of fiber
Assignee: Mitsubishi Chemical Corp
•
Filing: 1988-08-19
•
Granted: —
•
Expires: 2008-08-19
Abstract
Abstract A continuous process for producing composite fibrous sheets superior in strength, dimensional stability, flexibility, appearance, and feeling and additionally can be provided with electrical conductivity and hygroscopicity, which process comprises supplying a short-fibrous material in the form of liquid dispersion onto a continuously traveling fabric, romoving the liquid of the supplied dispersion to form a laminate of the fabric with a web of the short-fibrous material, followed by applying pressurized liquid jets onto the laminate to interlace filaments of the fabric with short filaments of the web.
Inventors
- 👤 Masakatsu Yoshida
- 👤 Masami Kunimoto
- 👤 Toshihiro Iwashe
- 👤 Yukimasa Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 12:09
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/44; D04H1/46; D04H1/48; D04H1/49; D04H1/42; D04H1/4209; D04H1/4242; D04H1/492; D04H1/498; D04H1/70; D04H1/72; D04H1/732
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
67 words
A continuous process for producing composite fibrous sheets which comprises supplying a short-fibrous material in the form of liquid dispersion onto a continuously traveling fabric, removing the liquid of the supplied dispersion to form a laminate of the fabric with a web of the short-fibrous material, followed by applying pressurized liquid jets onto the laminate to interlace filaments of the fabric with short filaments of the web.
Claim 2
Dependent Claim
67 words
A continuous process for producing composite fibrous sheets which comprises supplying a short-fibrous material in the form of liquid dispersion onto a continuously traveling fabric, removing the liquid of the supplied dispersion to form a laminate of the fabric with a web of the short-fibrous material, followed by applying pressurized liquid jets onto the laminate to interlace filaments of the fabric with short filaments of the web.
Claim 3
Dependent Claim
36 words
The continuous process of Claim 1, wherein the liquid dispersion of short-fibrous material is supplied onto the fabric by allowing the dispersion to flow down in film form along a plate inclined on the fabric-advance side.
Claim 4
Dependent Claim
24 words
The continuous process of Claim 1, wherein the fiber concentration in the liquid dispersion of short-fibrous material is from 0.06 to 0.5% by weight.
Claim 5
Dependent Claim
19 words
The continuous process of Claim 1, wherein the short-fibrous material contains 0.05 - 30% by weight of carbon fiber.
Claim 6
Dependent Claim
39 words
The continuous process of Claim 1, wherein the short-fibrous material contains 0.05 - 30% by weight of carbon fiber and at least 20% by weight of a very fine fiber having a monofilament size of up to 1.5 deniers.
Claim 7
Dependent Claim
49 words
The continuous process of Claim 1, wherein the short-fibrous material contains 0.05 - 30% by weight of carbon fiber, at least 20% by weight of a very fine fiber having a single filament denier of up to 1.5 deniers, and at least 10% by weight of a heat-fusible fiber.
Claim 8
Dependent Claim
19 words
The continuous process of Claim 1, wherein a polymeric binder is provided to the laminate after interlacing treatment thereof.
Claim 9
Dependent Claim
11 words
A composite sheet produced according to the process of Claim 1.
Claim 10
Dependent Claim
11 words
A composite sheet produced according to the process of Claim 4.
Claim 11
Dependent Claim
11 words
A composite sheet produced according to the process of Claim 5.
Claim 12
Dependent Claim
11 words
A composite sheet produced according to the process of Claim 6.
Claim 13
Dependent Claim
11 words
A composite sheet produced according to the process of Claim 7.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.