摘要:
The application discloses a variety of ways of making composites, particularly mats, in which a fabric layer and an uncured rubber layer are superimposed in a mould having opposed plates, and subjected to heat and pressure between the plates to cure the rubber and join it to the fabric. Methods and means are disclosed for protecting the fabric against the effects of moulding heat and also for keeping fabric pieces in position.Other methods disclosed relate to providing three-dimensional configuration on the fabric-covered surface. Characteristic moulding apparatus and characteristic composite products are aspects of the disclosure.
摘要:
The application discloses coherent, processable rubber compositions containing cured rubber particles, especially recycled crumb rubber, dispersed in a curable base rubber. A processable composition, particularly one which can be roll-processed into a self-sustaining web is achieved by including in the curable rubber a low-viscosity curable rubber component such as a liquid rubber. This component wets the crumb rubber enabling it to disperse fully during mixing and connect intimately into the structure upon curing. This technique enables larger quantities and/or smaller particle sizes of the crumb rubber to be successfully incorporated while maintaining processability. Inert fillers can be used or omitted, reducing density. The novel rubber compounds are particularly suitable for making into layer products such as mats and flooring materials. Desirably these are laminated with fabric such as tufted textiles. This can be done in a compression moulding process.
摘要:
The application discloses a variety of ways of making composites, particularly mats, in which a fabric layer and an uncured rubber layer are superimposed in a mould having opposed plates, and subjected to heat and pressure between the plates to cure the rubber and join it to the fabric. Methods and means are disclosed for protecting the fabric against the effects of moulding heat and also for keeping fabric pieces in position.Other methods disclosed relate to providing three-dimensional configuration on the fabric-covered surface. Characteristic moulding apparatus and characteristic composite products are aspects of the disclosure.