| 摘要 |
<p>Compositions particularly for use in the construction industry comprise a matrix of solid particles, comprising at least two of aggregate, sand and filler, embedded in a binder, which is predominantly polyethylene terephthalate, such as is found in recycled bottle, wherein the binder is present in an amount in the range of from 1 to 50% by weight. The process for the preparation which comprises mixing heated particles and binder, shaping if desired, and allowing the mixture to solidify, wherein solid particles and binder are heated independently of each other prior to mixing such that on mixing the temperature of the mixture is in the range of from 230¦ to 300 ¦C, and wherein the solid particles are heated to a higher temperature than the binder.</p> |
