Patent ID: 8758861
Filing Date: 2014-06-24
Classification: C03C,C08G,C08K,C08L,C09J,C09K,Y10T

Abstract:
1. A process for forming a substance for use as a sealant with Insulating Glass (IG) units comprising the steps of: (a) applying a first part of a two-part sealant composition and a second part of a two-part sealant composition to a substrate; wherein the first part comprises a polymer selected from a silane terminated polyurethane or a same terminated polyether; wherein this polymer present in an amount of up to 100% by weight of the first part of the sealant composition; and wherein the second part comprises a plasticiser that it is compatible with the polymer and a filler comprising at least 0.5% by weight of residual water, wherein the tiller comprises at least one rheological filler, and wherein the filler is present in an amount of 80-20% by weight of the second part of the sealant composition; and wherein the amount of polymer present in the first part makes up 4-50% by weight of the first and second parts taken together, and (b) allowing the first part and the second part to cure by allowing a reaction between the first part and the second part to proceed, and form a cured insulating glass sealant substance wherein the cured sealant substance has a 48 hour Shore A hardness in the range of 25-70, a Modulus of Failure in the range of 0.4-2.0 mPa, and a Strain at Break in the range of 20-100%: where the twp-part sealant composition has a Wallace work life of 0-60 minutes.