Butt-weldable conveyor belt
First Claim
1. Conveyor belt comprising a layered composite of:
- i) a textile ply (1) with a first ply surface (11) and a second ply surface (12);
ii) a first plastic layer (2), which adheres to the first ply surface (11), of a thermoplastic plastic with a creeping strength vk of at the most 0.005 at 30°
C., which contains at least 70 percent by weight of a non-crosslinked thermoplastic with a creeping strength vk of at the most 0.005 at 30°
C.; and
iii) a second plastic layer (3), which adheres to the second ply surface (12), of a thermoplastic plastic with a creeping strength vk of at the most 0.005 at 30°
C., which contains at least 70 percent by weight of a non-crosslinked thermoplastic with a creeping strength vk of at the most 0.005 at 30°
C.;
with the proviso that the quotient rv gives a value in the range of 5 to 25 according to the following Formula (I);
wherein VB denotes the volume per unit area of the said layered composite and ρ
T denotes the density of the textile ply (1), and GT denotes the weight per unit area of the textile ply (1).
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Accused Products
Abstract
The invention relates to conveyor belts, which have a laminate consisting of: i) a textile ply (1) with a first ply surface (11) and with a second ply surface (12); ii) a first synthetic material ply (2), which adheres to the first ply surface (11), is made of a thermoplastic material having a creep resistance vk of no greater than 0.005 at 30° C., and which contains at least 70% by weight of a thermoplastic having a creep resistance vk of no greater than 0.005 at 30° C.; and iii) a second synthetic material ply (3), which adheres to the second ply surface (12), is made of a thermoplastic material having a creep resistance vk of no greater than 0.005 at 30° C., and which contains at least 70% by weight of a thermoplastic having a creep resistance vk of no greater than 0.005 at 30° C., with the provision that the quotient rv of formula (1), wherein VB represents the surface volume of the laminate, ρT represents the density, and GT represents the weight per unit area of the textile ply (1), results in a value ranging from 5 to 25. These conveyor belts can be joined to form endless conveyor belts via butt end connections.
20 Citations
13 Claims
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1. Conveyor belt comprising a layered composite of:
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i) a textile ply (1) with a first ply surface (11) and a second ply surface (12);
ii) a first plastic layer (2), which adheres to the first ply surface (11), of a thermoplastic plastic with a creeping strength vk of at the most 0.005 at 30°
C., which contains at least 70 percent by weight of a non-crosslinked thermoplastic with a creeping strength vk of at the most 0.005 at 30°
C.; and
iii) a second plastic layer (3), which adheres to the second ply surface (12), of a thermoplastic plastic with a creeping strength vk of at the most 0.005 at 30°
C., which contains at least 70 percent by weight of a non-crosslinked thermoplastic with a creeping strength vk of at the most 0.005 at 30°
C.;
with the proviso that the quotient rv gives a value in the range of 5 to 25 according to the following Formula (I);
wherein VB denotes the volume per unit area of the said layered composite and ρ
T denotes the density of the textile ply (1), and GT denotes the weight per unit area of the textile ply (1). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Method for making a conveyor belt endless, wherein this method comprises:
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i) providing the conveyor belt with butt ends, and ii) welding together of the butt ends.
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Specification