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公开(公告)号：US20230264383A1
公开(公告)日：2023-08-24
申请号：US18142200
申请日：2023-05-02
Applicant: LOUISIANA-PACIFIC CORPORATION
Inventor： DAVID C. RITTER
Abstract: A process for producing a smooth-sided strand-based siding or wood structural panel using a pre-telegraphing process. The pre-telegraphing is performed after the primary process completes pressing and consolidation of the substrate/board. The pre-telegraphing process applies a water spray on the hot board immediately out of the primary process press, and before overlay application. The application of the water spray causes the surface of the board to swell and cure. A settling period follows to allow the top surface particles and strands to swell along with absorption and evaporation of the moisture. This is followed by surface sanding to remove the telegraphing and produce a smooth surface. This may then be followed by lamination of overlay(s). The process is completed by post-lamination treatment and coating of the board.
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2.发明申请公开(公告)号：US20180126584A1
公开(公告)日：2018-05-10
申请号：US15803771
申请日：2017-11-04
Applicant: LOUISIANA-PACIFIC CORPORATION
Inventor： DAVID C. RITTER
Abstract: A process for producing a smooth-sided strand-based siding or wood structural panel using a secondary pressing process. The secondary pressing process is performed after the primary process completes pressing and consolidation of the substrate/board. The secondary process applies and cures the overlay after applying a water spray on the hot board immediately out of the primary process press, and before overlay application. The application of the water spray causes the surface of the board to swell and cure. A settling period follows to allow the top surface particles and strands to swell along with absorption and evaporation of the moisture. This is followed by surface sanding to remove the telegraphing and produce a smooth surface, which is then followed by lamination of the overlay(s). The process is completed by post-lamination treatment and coating of the board.
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公开(公告)号：US20250065531A1
公开(公告)日：2025-02-27
申请号：US18945242
申请日：2024-11-12
Applicant: LOUISIANA-PACIFIC CORPORATION
Inventor： GARETH PAUL MERRICK , DAVID L. STACKHOUSE , TOMMY R. WYATT , ERIC C. BILLINGS , LANCE OLSON , DAVID C. RITTER
IPC: B27D1/00
Abstract: An improved engineered wood product, and related methods, with improved actual and apparent surface quality. The product includes a high basis weight fines layer overlaying a strand matrix base layer, with one or more overlay layers. The fines layer may be placed between the overlay layers, if multiple overlays are present. The configuration of fines layer and overlay layer(s) minimizes the presence of sub-surface imperfections that may result in visible telegraphing on the exposed surface. A light pattern or texture may be embossed on the outermost overlay layer during the pressing process. Additionally, a paint primer layer or coating with added aggregate may be applied to help camouflage inherent sub-surface defects.
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公开(公告)号：US20200247002A1
公开(公告)日：2020-08-06
申请号：US16780726
申请日：2020-02-03
Applicant: LOUISIANA-PACIFIC CORPORATION
Inventor： G. PAUL MERRICK , DAVID L. STACKHOUSE , TOMMY R. WYATT , ERIC C. BILLINGS , LANCE OLSON , DAVID C. RITTER
Abstract: An improved engineered wood product, and related methods, with improved actual and apparent surface quality. The product includes a high basis weight fines layer overlaying a strand matrix base layer, with one or more overlay layers. The fines layer may be placed between the overlay layers, if multiple overlays are present. The configuration of fines layer and overlay layer(s) minimizes the presence of sub-surface imperfections that may result in visible telegraphing on the exposed surface. A light pattern or texture may be embossed on the outermost overlay layer during the pressing process. Additionally, a paint primer layer or coating with added aggregate may be applied to help camouflage inherent sub-surface defects.
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