Powder coating primer
AssigneePulver Kimya San. Ve Tic A.S.
InventorsMartin Michael WITTIG, Ekkehard Scobel, Hüseyin Çagatay Pakkan, Seniz Ünalan Okar
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Abstract
A primer composition for coating a substrate prior to application thereon of an intumescent fire protecting coating composition, the primer composition being a powder coating composition consisting of an extruded and subsequently ground mixture of binding agents, hardening agents and optionally one or more of optional pigments, optional filler, and optional additives, and a porous material in a proportion of one to twelve percent by weight of the powder coating composition. The porous material is mesoporous or microporous.
Claims15
A primer composition for coating a substrate prior to application thereon of an intumescent fire protecting coating composition, the primer composition being a powder coating composition consisting of:
- an extruded and subsequently ground mixture of binding agents, hardening agents and optionally one or more of optional pigments, optional filler, and optional additives;
- and
- a porous material in a proportion of one to twelve percent by weight of the powder coating composition,
- wherein the porous material is mesoporous or microporous.
A method for production of a powder coating composition as a primer for coating a substrate prior to application thereon of an intumescent fire protecting coating composition, the method comprising:
- processing binding agents and hardening agents in an extruder to form an extrudate;
- grinding the extrudate to form a ground extrudate;
- and
- blending the ground extrudate with a porous material with a proportion of one to twelve percent by weight of the powder coating composition,
- wherein the porous material is mesoporous or microporous.
Dependencies are inferred from the claim text.