Abstract: Continuous manufacture of at least a layer of latex foam with recesses of unlimited length to be divided in a plurality of blocks of latex foam by transverse cuts. The layer has a thickness between 10 and 20 cm and more. The process includes advancing along a predetermined longitudinal direction a metal laying surface provided with protuberances, gelating, curing. The process includes: a) Before depositing the latex foam inserting, by interference fit, supporting elements of resilient deformability having a predetermined thickness between pairs of protuberances of horizontal rows, the supporting elements of unlimited length; b) Carrying away the supporting elements with the advancing laying surface between an injection latex foam station and a layer extracting station; c) Embedding with latex foam the supporting elements. Advantageously the process forwards the blocks to a washing station and squeezes the blocks to a thickness reduction between 3% and 5% of their initial thickness.

Abstract: Process to manufacture a composite foam including at least two foams with cellular structure, at least one of them being a latex foam. The present process avails itself of the steps of preparing separately the forming mixtures of the foams of cellular structure; mixing independently the one from the other forming mixtures; foaming separately each of the forming mixture; sending separately the foams obtained into a single mixing installation; mixing the foams until to manufacture the composite foam. Preferably the composite foam is deposited on a laying surface to form rest articles for example mattresses provided with recesses.

Abstract: A plant for manufacturing a continuous latex foam layer (2) to form mattresses (6) provided with cells (5). The plant comprises a plurality of laying planes (7) provided with a plurality of separate tables (13) separately arranged side by side to form a surface for the foam deposit. Each table comprises protuberances (14) and the arrangement of the protuberances on a table can differ from that of the juxtaposed tables in order to create supporting areas for the different body parts of the user. Preferably the tables (13) with their protuberances (14) are slidably fitted onto the laying planes (7) and can be easily and quickly replaced with separately provided tables having protuberances (14) differently arranged in order to meet the support capacity values required by different users.

Abstract: Continuous manufacture of at least a layer of latex foam with recesses of unlimited length to be divided in a plurality of blocks of latex foam by transverse cuts. The layer has a thickness between 10 and 20 cm and more. The process includes advancing along a predetermined longitudinal direction a metal laying surface provided with protuberances, gelating, curing. The process includes: a) Before depositing the latex foam inserting, by interference fit, supporting elements of resilient deformability having a predetermined thickness between pairs of protuberances of horizontal rows, the supporting elements of unlimited length; b) Carrying away the supporting elements with the advancing laying surface between an injection latex foam station and a layer extracting station; c) Embedding with latex foam the supporting elements. Advantageously the process forwards the blocks to a washing station and squeezes the blocks to a thickness reduction between 3% and 5% of their initial thickness.

Abstract: A panel for a mattress including first and second fabric layers joined together along their edges and a padding material between said fabrics. The padding material includes at least a layer of resilient foam provided with through-holes. The foam layer is quilted between the first and second fabric layers. A method of manufacturing the panel includes forming a resilient foam body provided with recesses, horizontally cutting a plurality of single layers in the body in the recesses portion to result in at least one layer with through-holes, sandwiching at least one of the single layers provided with through-holes in each panel between the first and second fabric layers.

Abstract: A panel for a mattress including first and second fabric layers joined together along their edges and a padding material between said fabrics. The padding material includes at least a layer of resilient foam provided with through-holes. The foam layer is quilted between the first and second fabric layers. A method of manufacturing the panel includes forming a resilient foam body provided with recesses, horizontally cutting a plurality of single layers in the body in the recesses portion to result in at least one layer with through-holes, sandwiching at least one of the single layers provided with through-holes in each panel between the first and second fabric layers.

Abstract: Process for continuous manufacture of latex foam rest articles (2, 38) such as mattresses, cushions and the like comprising a part (18) able to participate to the manufacture steps and to remain embedded in the article with consequent improvements of final performances. A flexible perforated band, preferably a flat polymeric material net (18) with longitudinal and cross reinforcement members (19), is placed over a foam laying surface (3) provided with protuberances (7) and in continuous advancement between a foam laying station (4) and an unlimited length article extraction station (5). The latex foam passes through net holes (20) forming an upper portion (24) and a lower portion (23) relative to said net. The net continuously opposes contraction forces and weight force exerted from upper portion on lower portion. The unlimited length article is subjected to successive cross cuts originating rest articles wherein a foam embedded net is arranged on ends of recesses originated by the protuberances.

Abstract: Process for continuous manufacture of latex foam rest articles such as mattresses, cushions and the like comprising a part able to participate to the manufacture steps and to remain embedded in the article with consequent improvements of final performances. A flexible perforated band, preferably a flat polymeric material net with longitudinal and cross reinforcement members, is placed over a foam laying surface provided with protuberances and in continuous advancement between a foam laying station and an unlimited length article extraction station. The latex foam passes through net holes forming an upper portion and a lower portion relative to said net. The net continuously opposes contraction forces and weight force exerted from upper portion on lower portion. The unlimited length article is subjected to successive cross cuts originating rest articles wherein a foam embedded net is arranged on ends of recesses originated by the protuberances.

Abstract: A plant for manufacturing a continuous latex foam layer (2) to form mattresses (6) provided with cells (5). The plant comprises a plurality of laying planes (7) provided with a plurality of separate tables (13) separately arranged side by side to form a surface for the foam deposit. Each table comprises protuberances (14) and the arrangement of the protuberances on a table can differ from that of the juxtaposed tables in order to create supporting areas for the different body parts of the user. Preferably the tables (13) with their protuberances (14) are slidably fitted onto the laying planes (7) and can be easily and quickly replaced with separately provided tables having protuberances (14) differently arranged in order to meet the support capacity values required by different users.

Abstract: A panel for a mattress including first and second fabric layers joined together along their edges and a padding material between said fabrics. The padding material includes at least a layer of resilient foam provided with through-holes. The foam layer is quilted between the first and second fabric layers. Preferably the manufacturing method includes the steps of forming a resilient foam body provided with recesses, horizontally cutting a plurality of single layers in said body in the recesses portion, sandwiching at least one of the single layers provided with through-recesses in each panel between the first and second fabric layers.

Abstract: Process for continuous manufacture of latex foam rest articles such as mattresses, cushions and the like comprising a part able to participate to the manufacture steps and to remain embedded in the article with consequent improvements of final performances. A flexible perforated band, preferably a flat polymeric material net with longitudinal and cross reinforcement members, is placed over a foam laying surface provided with protuberances and in continuous advancement between a foam laying station and an unlimited length article extraction station. The latex foam passes through net holes forming an upper portion and a lower portion relative to said net. The net continuously opposes contraction forces and weight force exerted from upper portion on lower portion. The unlimited length article is subjected to successive cross cuts originating rest articles wherein a foam embedded net is arranged on ends of recesses originated by the protuberances.

Abstract: Sulfur free, crosslinking, scorch-retarding compositions for compounding and cure of polymers susceptible to cure by free radical initiators are disclosed.

Abstract: Sulfur free, crosslinking, scorch-retarding compositions for compounding and cure of polymers susceptible to cure by free radical initiators are disclosed.

Abstract: Compositions for the polymer curing, comprising: a) one or more organic peroxides and b) 3,7-Dimethyl-1,3,6-Octatriene (OCIMENE).

Abstract: Compositions for curing polymers comprising one or more organic peroxides and trans-stilbene.

Abstract: Compositions for the polymer curing, comprising:A) one or more organic peroxidesandB) dicyclopentadiene

Abstract: Compositions for the polymer curing, comprising:A) one or more organic peroxides andB) trans,trans-2,6-dimethyl-2,4,6-octatriene

Abstract: Peroxidic compositions utilizable for curing elastomers and polyolefins having scorch retardant properties, which comprise:(A) a peroxide in powder or in the form of granules or master batch(B)+(C) inhibitor and promoter in powder, granules or master batch,wherein (B) is an inhibitor derived from hydroquinone and (C) is a curing promoter.