MULTILAYER PET TOY AND METHOD OF MAKING SAME
A multilayer pet toy has an inner structure having an inner-structure resilient material; an outer structure joined to the inner structure, the outer structure having a first layer having a first sandwich structure, the first sandwich structure having an outer-structure resilient material and a non-resilient material. Therein, the inner structure resilient material includes a first rubber compound that has a percentage of 30% or less by weight of natural rubber and a remainder being filler. The outer-structure resilient material includes a second rubber compound that has a percentage of 44% or more by weight of natural rubber and a remainder being filler.
1 . A multilayer pet toy comprising:
an inner structure and an outer structure;
a layer of adhesive joining the outer structure to the inner structure;
the inner structure comprising an inner-structure resilient material; and
the outer structure comprising a first layer having an outer-structure resilient material.
2 . The multilayer pet toy of claim 1 , wherein the inner structure resilient material comprises a first vulcanized material and the outer structure resilient material comprises a second vulcanized material.
3 . The multilayer pet toy of claim 1 , wherein the inner structure resilient material comprises a first rubber compound that has a percentage of 30% or less by weight of natural rubber and a remainder being filler.
4 . The multilayer pet toy of claim 3 , wherein the outer-structure resilient material comprises a second rubber compound that has a percentage of 44% or more by weight of natural rubber and a remainder being filler.
5 . The multilayer pet toy of claim 1 , wherein the inner structure resilient material consists of a first rubber compound that has a percentage of 30% by weight of natural rubber and a remainder being filler.
6 . The multilayer pet toy of claim 5 , wherein the outer-structure resilient material consists of a second rubber compound that has a percentage of 44% by weight of natural rubber and a remainder being filler.
7 . The multilayer pet toy of claim 1 , wherein the non-resilient material comprises a textile.
8 . The multilayer pet toy of claim 1 , wherein the outer structure comprises a first sandwich structure, the first sandwich structure comprising the outer layer resilient material and a non-resilient material.
9 . The multilayer pet toy of claim 8 , wherein the inner structure comprises a first part and a second part, the two parts being separately molded.
10 . The multilayer pet toy of claim 1 , further comprising a squeaker.
11 . A method of making a multilayer pet toy, the multi layer pet toy comprising
an inner structure and an outer structure;
a layer of adhesive joining the outer structure to the inner structure;
the inner structure comprising an inner-structure resilient material; and
the outer structure comprising a first layer having an outer-structure resilient material;
the method comprising
(a) forming a first part and a second part of the inner structure by molding;
(b) joining the first and second parts by gluing;
(c) applying an adhesive layer to the inner structure and joining at least one segment of the first layer to the inner structure to form an outer structure.
12 . The method of claim 11 , wherein after step (b), a step of vulcanizing the joined first and second parts to form an inner structure is performed.
13 . The method of claim 12 , wherein after step (c), a step vulcanizing the outer structure to form the multilayer pet toy is performed.
14 . The method of claim 11 , wherein step (c) further comprises applying an adhesive layer joining at least one segment of a second layer to form an outer structure.
15 . The method of claim 11 , wherein step (b) is performed along a peripheral edge of each of the parts.
16 . The method of claim 11 , wherein the inner structure resilient material comprises a first rubber compound that has a percentage of 30% or less by weight of natural rubber and a remainder being filler.
17 . The method of claim 16 , wherein the outer-structure resilient material comprises a second rubber compound that has a percentage of 44% or more by weight of natural rubber and a remainder being filler.
18 . The method of claim 11 , wherein the inner structure resilient material consists of a first rubber compound that has a percentage of 30% by weight of natural rubber and a remainder being filler.
19 . The method of claim 18 , wherein the outer-structure resilient material consists of a second rubber compound that has a percentage of 44% by weight of natural rubber and a remainder being filler.
20 . The method of claim 11 , wherein vulcanization is performed at a temperature no greater than 160 degrees centigrade.