Formaldehyde-free mineral fibre insulation product
DC CAFCFirst Claim
1. A mineral fiber insulating material comprising mineral fibers and less than about 15% by weight of an organic binder, whereina) the organic binder is a formaldehyde free product of curing an aqueous solution having a pH of greater than 5 when applied to the mineral fibers,b) the mineral fiber insulating material has a recovered thickness of at least about 95% as determined according to Annex A of British standard BS EN 823:
- 1995,c) the mineral fiber insulating material having an ordinary parting strength of at least about 95 g/g,d) the mineral fiber insulating material having a weathered parting strength of at least about 75 g/g, ande) the mineral fiber insulating material is packaged.
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Abstract
A packaged mineral fibre insulating material has: a) a Recovered Thickness of at least 95% nominal thickness; and b) an Ordinary Parting Strength of at least 95 g/g; and c) a Weathered Parting Strength of at least 75 g/g the material comprising mineral fibres and an organic, formaldehyde free binder in a quantity of less than 15% by weight, preferably less than 10% by weight, said binder having been applied to the fibres of the insulating material in liquid form at pH of greater than 5.
221 Citations
20 Claims
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1. A mineral fiber insulating material comprising mineral fibers and less than about 15% by weight of an organic binder, wherein
a) the organic binder is a formaldehyde free product of curing an aqueous solution having a pH of greater than 5 when applied to the mineral fibers, b) the mineral fiber insulating material has a recovered thickness of at least about 95% as determined according to Annex A of British standard BS EN 823: - 1995,
c) the mineral fiber insulating material having an ordinary parting strength of at least about 95 g/g, d) the mineral fiber insulating material having a weathered parting strength of at least about 75 g/g, and e) the mineral fiber insulating material is packaged. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- 1995,
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11. A mineral fiber insulating material having a density in a range of 100 to 200 kg/m3 comprising mineral fibers and less than 15% by weight an organic, formaldehyde free binder, wherein
a) the mineral fiber insulating material has an ordinary compression strength of at least about 60 kPa, b) the mineral fiber insulating material has a weathered compression strength of at least about 25 kPa, c) the organic, formaldehyde free binder is a product of drying and curing an aqueous solution with a pH of greater than about 5 when applied to the mineral fibers, and d) the mineral fiber insulating material is packaged.
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20. A method of manufacturing a packaged mineral fibre insulating material selected from the group consisting of:
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(i) material having a) a Recovered Thickness of at least 95%; and b) an Ordinary Parting Strength of at least 95 g/g; and c) a Weathered Parting Strength of at least 75 g/g; and (ii) material having a) an Ordinary Compression Strength of at least 60 kPa; and b) a Weathered Compression Strength of at least 25 kPa; comprising the steps of i) applying an organic, formaldehyde free binder in aqueous solution to the mineral fibres at a pH of greater than 5 and ii) curing the product so that it contains a quantity of less than 15% by weight of binder and iii) packaging the insulating material.
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Specification