Abstract:
The present invention provides modified urea formaldehyde (UF) resin binder compositions and mineral fiber mats having an emulsion polymer modifier comprising, in copolymerized form, from 5 to 25 wt.% of co polymerized carboxylic acid functional monomers. The emulsion polymers have a measured glass transition temperature (DSC) ranging from -40 °C to 70 °C and a large average particle size. Further, the emulsion polymers comprise less than 30% of the copolymerized acid in neutralized form and do not excessively thicken aqueous compositions containing them. The modified UF resin binder compositions enable good dilution stability in use and high tensile strength in products containing them.
Abstract:
The invention relates to a method for manufacturing water treated man-made vitreous fibres (MMVF) comprising: a. providing a mineral melt, b. providing a fiberizing apparatus, c. fiberizing the mineral melt to form man-made vitreous fibres (MMVF), d. collecting the MMVF, and thereafter e. applying about 0.1 wt% to about 1 wt% water, based on the weight of the MMVF, to the MMVF to form water treated MMVF.
Abstract:
A coated non-woven fibrous mat is disclosed comprising a non-woven precursor mat including a plurality of randomly oriented fibers bound by a precursor binder composition, The non-woven fibrous precursor mat has a first major surface and a second major surface opposite to and having a surface roughness greater than the first surface, defining a thickness therebetween. A coating composition is applied to the second major surface of the non-woven precursor mat and substantially uniformly penetrates 5% to less than 30% of the thickness of the non-woven precursor mat. The coating composition comprises a mineral filler and an organic latex binder composition. The coating composition is applied to the non-woven precursor mat in an amount between 1.0 and 10.0 lbs/100 ft2.
Abstract:
A non-woven fibrous mat is provided that includes a mixture of a thermoset resin and a thermoplastic resin. It has been found that the physical properties (e.g., flexibility, tensile strength) of a non- woven mat may be improved by formulating a binder composition comprising variable ratios of the thermoset material and the thermoplastic material. In this way, a bonded nonwoven mat may be achieved having a desirable combination of strength and flexibility, while maintaining good heat and water resistance.
Abstract:
A series of polyester and vinyl ester based Insoluble binder compositions for use with fiberglass are provided. These compositions are comprised of cross-linkable unsaturated resins used in tandem with various azo initiators. The compositions are capable of thermally curing; creating a water and organic-insoluble binder exhibiting good adhesion to glass. These thermally cured binders are able to provide similar fiberglass tensile strength to the conventional dibenzoyl peroxide containing compositions, while exhibiting improved retention of whiteness over time.
Abstract:
The present invention relates to an aqueous binder composition for mineral fibers comprising - at least one hydrocolloid, - at least one fatty acid ester of glycerol.
Abstract:
A mineral wool insulating product which comprises a layer, notably a continuous layer, of mixed mineral wool fibres, the mixed mineral wool fibres comprising a binder, first mineral wool fibres and second mineral wool fibres, the first mineral wool fibres and the second mineral wool fibres have a difference of softening point.
Abstract:
The present invention provides polymer modified aqueous urea formaldehyde resin (UF resin) binder compositions useful in making a treated glass mat, e.g., for roofing shingles, wherein the polymer modifier is an multistage aqueous emulsion acorn copolymer comprising one protuberant polymer stage containing phosphorous acid groups and one or more other polymer stage comprising an addition copolymer incompatible with the protuberant polymer stage, wherein the multistage aqueous emulsion copolymer has a measured Tg of from -60 to 25 °C, or, preferably from -30 to 12 °C and, further wherein the weight ratio of the total of monomers used to make the one or more other polymer stage to the total amount of monomers used to make the protuberant polymer stage ranges from 3:1 to 50:1, or, preferably, from 3:1 to 30:1 or, more preferably, from 3:1 to 20:1, or, even more preferably, from 8:1 to 12:1.