B2 rated one component spray polyurethane foam formulation for fenestration openings

• Main Authors: BOEHM CAROLIN, CRAIN STEVEN P, MASSUEGER LARS
• Format: Patent
• Language: Chinese; English
• Published: 29.08.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

A one component spray polyurethane foam formulation containing a polymeric isocyanate with nominal functionality of 2.5 to 3.5, a polyol component that is at least 85 percent aliphatic and having a mole ratio of polyol with three or more functionality to total polyol of 0.2 to 0.75, 15-30 wt% of a plasticizer, 1.5-3.5 wt% phosphorous, 5.5 to 11.5 halogen and 1.5 to 5 millimoles of blowing agent per gram of formulation and that is free of expandable graphite achieves a B2 rating in DIN 4102 testing. 种单组分喷涂聚氨酯泡沫调配物实现在DIN 4102测试中的B2等级，该单组分喷涂聚氨酯泡沫调配物含有标称官能度为2.5到3.5的聚合物异氰酸酯、至少85％脂族且具有三个或更多个官能团的多元醇与总多元醇的摩尔比为0.2到0.75的多元醇组分、15wt％到30wt％的塑化剂、1.5wt％到3.5wt％磷、5.5到11.5卤素以及每克的调配物1.5毫摩尔到5毫摩尔的发泡剂并且不含可膨胀石墨。