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1. WO2000043593 - ELASTOMERIC ROLL COVER WITH ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE FILLER

Publication Number WO/2000/043593
Publication Date 27.07.2000
International Application No. PCT/US1999/019164
International Filing Date 23.08.1999
Chapter 2 Demand Filed 09.08.2000
IPC
D21G 1/02 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
GCALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
1Calenders; Smoothing apparatus
02Rolls; Their bearings
F16C 13/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
13Rolls, drums, discs, or the like; Bearings or mountings therefor
CPC
D21G 1/0233
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
GCALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
1Calenders
02Rolls; Their bearings
0233Soft rolls
F16C 13/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
13Rolls, drums, discs, or the like
Applicants
  • STOWE WOODWARD, INC. [US/US]; 1 Technology Drive Westborough Technology Park Westborough, MA 01581, US (AllExceptUS)
  • STEPHENS, Nancy, H. [US/US]; US (UsOnly)
Inventors
  • STEPHENS, John, Michael; null
Agents
  • CANNON, James, R. ; Myers, Bigel, Sibley, & Sajovec, P.A. P.O. Box 37428 Raleigh, NC 27627, US
Priority Data
09/234,73421.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ELASTOMERIC ROLL COVER WITH ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE FILLER
(FR) REVETEMENT DE CYLINDRE EN ELASTOMERE AVEC UN AGENT DE REMPLISSAGE DE POLYETHYLENE A POIDS MOLECULAIRE ULTRA ELEVE
Abstract
(EN)
The industrial roll of the present invention comprises a substantially cylindrical core, an adhesive layer overlying the core, and a cover overlying the adhesive layer. The cover comprises: a polymeric base layer overlying the adhesive layer; and a top stock layer overlying the base layer. The top stock layer comprises a mixture of an elastomeric material and ultra high molecular weight polyethylene (UHMWPE), with the mixture including 100 parts elastomeric material by weight and between about 25 and 50 parts UHMWPE by weight. With these components in the recited ratios, the roll can be formulated to a desired hardness within the desired 10 to 50 P & J hardness range while maintaining release properties suitable for papermaking in the papermaking environment.
(FR)
L'invention concerne un cylindre industriel qui comprend une âme sensiblement cylindrique recouverte d'une couche adhésive elle-même recouverte d'un revêtement. Ce revêtement comprend une couche de base polymère recouvrant la couche adhésive et une couche supérieure recouvrant ladite couche de base. Cette couche supérieure comprend un mélange d'un matériau élastomère et de polyéthylène à poids moléculaire ultra élevé (UHMWPE). Ce mélange comprend 100 parties en poids de matériau élastomère et entre 25 et 50 parties en poids d'UHMWPE. Avec ces composants présents selon les rapports susmentionnés, ce cylindre peut être formé avec une dureté requise, dans la plage de dureté de 10 à 50 requise tout en maintenant des propriétés de dégagement requises pour la fabrication du papier dans l'environnement de l'industrie du papier.
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