(19) |
 |
|
(11) |
EP 0 343 971 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
|
30.01.1991 Bulletin 1991/05 |
(43) |
Date of publication A2: |
|
29.11.1989 Bulletin 1989/48 |
(22) |
Date of filing: 24.05.1989 |
|
|
(84) |
Designated Contracting States: |
|
AT BE CH DE ES FR GB GR IT LI LU NL SE |
(30) |
Priority: |
27.05.1988 US 199618
|
(71) |
Applicant: THE CARBORUNDUM COMPANY |
|
Cleveland
Ohio 44114-2375 (US) |
|
(72) |
Inventors: |
|
- Furlani, Dennis E.
N. Tonawanda
New York 14120 (US)
- Packard, Kevin D.
Grand Island
New York 14072 (US)
- Wheeler, Douglas J.
Buffalo
New York 14092 (US)
|
(74) |
Representative: Scott, Susan Margaret et al |
|
BP INTERNATIONAL LIMITED
Patents & Agreements Division
Chertsey Road Sunbury-on-Thames
Middlesex TW16 7LN Sunbury-on-Thames
Middlesex TW16 7LN (GB) |
|
|
|
(54) |
Process for making uncured felt |
(57) A process is disclosed for making uncured felt, the process comprising the steps
of (A) mixing refracÂtory fibers and curable particulate polymeric solids of at least
one thermosetting polymeric material other than a two-stage phenolic in water to form
a slurry; (B) dewatering said slurry and forming felt comprising said solid fibers
and said polymeric solids; and (C) drying said felt at a temperature and for a time
sufficient to provide desired water removal but not high enough or long enough to
cure said polymeric solids, the water content of said felt subsequent to said drying
being up to about 25% by weight.