公开(公告)号：US11970571B2

公开(公告)日：2024-04-30

申请号：US17510637

申请日：2021-10-26

Applicant: STEPAN COMPANY

Inventor： Michael E. O'Brien ,  Warren A. Kaplan ,  Sarah Wolek ,  Jennifer S. Westfall ,  Calvin Gang

IPC: C08G59/06 ,  C08G59/24 ,  C08G59/42 ,  C08G59/62 ,  C08G59/68 ,  C08G59/72 ,  C08G65/331 ,  C08L67/02 ,  C08L71/08 ,  G10K11/162

CPC classification number: C08G59/063 ,  C08G59/245 ,  C08G59/686 ,  C08G59/72 ,  C08L67/02 ,  C08L71/08 ,  C08G2170/00 ,  C08G2350/00

Abstract: Noise, vibration, or harshness (NVH) properties of an industrial or consumer product are reduced by incorporating therein an effective amount of a polyether- or polyester-epoxide polymer (PEEP) composition. The PEEP compositions are one-component or two-component reaction products of a polyepoxide compound and a polyol composition. The PEEP compositions have a glass-transition temperature within the range of −50° C. to 50° C. and a loss factor of at least 0.5 by ASTM D5992 over a temperature range of at least 15 Celsius degrees at one or more frequencies within the range of 0.1 to 10,000 Hz. The PEEP compositions provide NVH damping over a broad temperature range, have improved flexibility compared with conventional epoxy technologies, avoid amine and isocyanate reactants, and can be tailored to meet target specifications.

公开(公告)号：US11993708B2

公开(公告)日：2024-05-28

申请号：US17066741

申请日：2020-10-09

Applicant: STEPAN COMPANY

Inventor： Warren A. Kaplan ,  Zhenhua Cui ,  Sarah Wolek

IPC: C08G18/42 ,  C08G18/73 ,  C08J9/14 ,  C08L67/03

CPC classification number: C08L67/03 ,  C08G18/4263 ,  C08G18/73 ,  C08J9/141 ,  C08G2110/0025 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2205/10 ,  C08L2205/025 ,  C08L2205/03

Abstract: Blends comprising an aromatic polyester polyol and a 1 to 10 wt. % of a fatty acid derivative are disclosed. The fatty acid derivative is a C8 to C18 fatty acid ester or a C8 to C18 fatty acid amide. Also disclosed are rigid PU or PU-PIR foams that comprise a reaction product of water, a catalyst, a foam-stabilizing surfactant, a polyisocyanate, a blowing agent, and the polyester polyol/fatty acid derivative blends. Surprisingly, low-temperature R-values of rigid foams based on pentane blowing agents can be improved significantly by using blends of aromatic polyester polyols and a minor proportion of readily available fatty acid derivatives. In some aspects, the difference between initial R-values of the foam measured at 75° F. and 40° F. is at least 5% greater than that of a similar foam prepared in the absence of the fatty acid derivative.

公开(公告)号：US11059933B2

公开(公告)日：2021-07-13

申请号：US16556396

申请日：2019-08-30

Applicant: STEPAN COMPANY

Inventor： Warren A. Kaplan ,  Jennifer S. Westfall

IPC: C08G18/42 ,  C08G18/16 ,  C08G18/58 ,  C08G18/76 ,  C08L75/04 ,  C09D175/08

Abstract: Isocyanate-modified polyester-epoxide polymer (i-PEEP) compositions are disclosed. The i-PEEP compositions comprise a reaction product of a polyepoxide compound, a polyisocyanate, and a polyester polyol composition. The ratio of epoxy equivalents to hydroxyl equivalents is within the range of 0.2 to 2. The i-PEEP index as defined herein is within the range of 100 to 200. The i-PEEP composition has a Tg within the range of −30° C. to 35° C. Low- and elevated-temperature processes catalyzed by bases or Lewis acids for making the i-PEEP compositions are also disclosed. In a simple yet innovative approach, a new class of polymers useful for coatings, elastomers, adhesives, sealants, and other valuable products is assembled from readily available starting materials without reliance on the polyamines typically used to cure epoxy systems.

公开(公告)号：US12037489B2

公开(公告)日：2024-07-16

申请号：US18144777

申请日：2023-05-08

Applicant: STEPAN COMPANY

Inventor： Warren A. Kaplan ,  Zhenhua Cui ,  Sarah Wolek

IPC: C08J9/14 ,  C08G18/42 ,  C08G18/73 ,  C08L67/03

CPC classification number: C08L67/03 ,  C08G18/4263 ,  C08G18/73 ,  C08J9/141 ,  C08G2110/0025 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2205/10 ,  C08L2205/025 ,  C08L2205/03

Abstract: A rigid PU or PU-PIR foam comprising a reaction product of water, a catalyst, a foam-stabilizing surfactant, a polyisocyanate, a blowing agent and a blend comprising:
(a) 90 to 99 wt. % of an aromatic polyester polyol having a hydroxyl number within the range of 150 to 400 mg KOH/g; and (b) 1 to 10 wt. % of a fatty acid derivative selected from the group consisting of C8 to C18 fatty acid esters and C8 to C18 fatty acid amides.

公开(公告)号：US11066550B2

公开(公告)日：2021-07-20

申请号：US16571970

申请日：2019-09-16

Applicant: STEPAN COMPANY

Inventor： Warren A. Kaplan ,  Jennifer S. Westfall

IPC: C08G59/62 ,  C08G59/24 ,  C08G59/68 ,  C08G59/72 ,  C08L63/00 ,  C08G59/06 ,  C08G65/40

Abstract: Polyether-epoxide polymer compositions are disclosed. The compositions comprise a reaction product of a polyepoxide compound and a polyol composition comprising a polyether polyol. The ratio of epoxy equivalents to hydroxyl equivalents is within the range of 0.5:1 to 3:1. The polyether-epoxide composition has a Tg within the range of −40° C. to 60° C. The polyether polyol has a hydroxyl value within the range of 150 to 800 mg KOH/g and an average hydroxyl functionality within the range of 3.5 to 8.0. In some aspects, the polyol composition further comprises a polyester polyol. Low- and elevated-temperature processes catalyzed by bases or Lewis acids for making the polyether-epoxide compositions are also disclosed. In a simple yet innovative approach, a new class of polymers useful for coatings, elastomers, adhesives, sealants, and other valuable products is assembled from readily available starting materials without reliance on polyamines or polyisocyanates.

公开(公告)号：US12104008B2

公开(公告)日：2024-10-01

申请号：US16994220

申请日：2020-08-14

Applicant: STEPAN COMPANY

Inventor： Zhenhua Cui ,  Warren A. Kaplan ,  Sarah Wolek

IPC: C08G59/06 ,  C08G18/42 ,  C08G18/48 ,  C08G59/14 ,  C08G63/06 ,  C08G65/331 ,  C08G65/34 ,  C08J9/00 ,  C09K5/14

CPC classification number: C08G59/063 ,  C08G18/4294 ,  C08G18/4895 ,  C08G59/14 ,  C08G63/06 ,  C08G65/331 ,  C08G65/34 ,  C08J9/0009 ,  C09K5/14 ,  C08G2110/0008 ,  C08G2110/0025 ,  C08G2115/02 ,  C08J2205/10 ,  C08J2375/06 ,  C08J2375/08 ,  Y02E60/14

Abstract: Polyether- or polyester-epoxide polymer (PEEP) compositions are disclosed. The compositions comprise reaction products of a polyepoxide compound and a polyol composition. The polyol composition has a melting point within the range of 20° C. to 100° C. and a hydroxyl number less than 35 mg KOH/g. The PEEP composition is a solid-solid phase-change material. As measured by differential scanning calorimetry (DSC) at a heating/cooling rate of 10° C./minute, the PEEP composition has a transition temperature within the range of −10° C. to 70° C., a latent heat at the transition temperature within the range of 30 to 200 J/g, and little or no detectable hysteresis or supercooling upon thermal cycling over at least five heating/cooling cycles that encompass the transition temperature. The PEEP compositions should enable formulators to manage thermal energy changes in many practical applications, including automotive, marine or aircraft parts, building materials, appliance insulation, electronics, textiles, garments, and paints or coatings.

公开(公告)号：US20200017736A1

公开(公告)日：2020-01-16

申请号：US16579301

申请日：2019-09-23

Applicant: Stepan Company

Inventor： Warren A. Kaplan ,  Sarah Wolek

IPC: C09J175/04 ,  C08G18/42 ,  C08G18/20 ,  C08G18/32 ,  C08G18/66 ,  C08G18/76 ,  E04D5/14

Abstract: A low-VOC, two-component polyurethane adhesive is provided. The polyurethane adhesive has an A-side that includes an isocyanate and a non-reactive plasticizer, and a B-side that includes an aliphatic polyester polyol, a non-polyester polyol, and a urethane catalyst. The A-side and the B-side are reacted at a volume ratio of 1:1 and formulated at an NCO/OH index within the range of 0.90 to 1.10. The polyurethane adhesive is solvent-free and is particularly suitable for adhering a polymeric membrane to a substrate.

公开(公告)号：US20160002386A1

公开(公告)日：2016-01-07

申请号：US14853659

申请日：2015-09-14

Applicant: Stepan Company

Inventor： Sarah Wolek ,  Warren A. Kaplan ,  Laura Schreiner ,  Chunhua Yao ,  David J. Norberg

IPC: C08G18/42 ,  C08L75/04 ,  C08G18/72 ,  C08G63/181 ,  C08G63/183

CPC classification number: C08G18/4263 ,  C08G18/092 ,  C08G18/163 ,  C08G18/1808 ,  C08G18/1816 ,  C08G18/225 ,  C08G18/4018 ,  C08G18/4027 ,  C08G18/4211 ,  C08G18/4213 ,  C08G18/4288 ,  C08G18/4829 ,  C08G18/544 ,  C08G18/72 ,  C08G18/7664 ,  C08G63/181 ,  C08G63/183 ,  C08G63/46 ,  C08G2101/00 ,  C08G2101/0025 ,  C08G2101/005 ,  C08G2105/02 ,  C08L75/04

Abstract: An aromatic polyester polyol having a nominal functionality of at least about 2 is produced from the esterification reaction of a phthalate-based composition containing less than 50 mol % of ortho-phthalic acid or phthalic anhydride, with a hydroxyl material containing at least 20 mol % of at least one branched aliphatic diol, and optionally transesterified with at least one hydrophobic material. The polyester polyol has improved shelf-life stability as demonstrated by the polyester polyol remaining clear and homogeneous for at least 6 months when stored at room temperature. The polyester polyol, when incorporated into a polyol foam-forming resin composition in an amount of at least 40 wt %, results in polyurethane and polyisocyanurate foams that exhibit low smoke and weight loss upon burning conditions.

Abstract translation: 由邻苯二甲酸酯类组合物的含邻苯二甲酸邻苯二甲酸酐或邻苯二甲酸酐的邻苯二甲酸酯类组合物与含有至少20mol％邻苯二甲酸酐的羟基材料的酯化反应产生具有至少约2的标称官能度的芳族聚酯多元醇， 的至少一种支化脂族二醇，并任选地与至少一种疏水性材料酯交换。 聚酯多元醇具有改善的保质期稳定性，如聚酯多元醇在室温下储存时保持透明和均匀至少6个月所证明的。 聚酯多元醇当以至少40重量％的量掺入多元醇发泡树脂组合物中时，导致聚氨酯和聚异氰脲酸酯泡沫在燃烧条件下表现出低的烟雾和重量损失。

公开(公告)号：US11667821B2

公开(公告)日：2023-06-06

申请号：US17348199

申请日：2021-06-15

Applicant: STEPAN COMPANY

Inventor： Michael E. O'Brien ,  Warren A. Kaplan ,  Jennifer S. Westfall

IPC: C09J163/04 ,  C08G59/42 ,  C08G59/62 ,  C09J163/00

CPC classification number: C09J163/04

Abstract: One-component (1K) adhesive compositions (“PEEP” compositions) and a process for making them are disclosed. A polyepoxide is reacted with a polyether polyol composition, a polyester polyol composition, or both in the presence of a heat-activated Lewis acid catalyst at a temperature within the range of 100° C. to 220° C. for a time effective to cure the adhesive. The compositions are storage-stable under ambient conditions. Compared with conventional epoxy compositions, the 1K PEEP compositions offer improved room temperature lap shear strength, better resilience, and higher elongation. The 1K PEEP systems deliver a desirable balance of physical and mechanical properties while avoiding polyisocyanates and polyamine crosslinkers.

公开(公告)号：US11168238B2

公开(公告)日：2021-11-09

申请号：US16579301

申请日：2019-09-23

Applicant: Stepan Company

Inventor： Warren A. Kaplan ,  Sarah Wolek

IPC: C09J175/04 ,  C08G18/42 ,  C08G18/20 ,  C08G18/32 ,  C08G18/66 ,  E04D5/14 ,  C08G18/76 ,  C08K5/1565

Abstract: A low-VOC, two-component polyurethane adhesive is provided. The polyurethane adhesive has an A-side that includes an isocyanate and a non-reactive plasticizer, and a B-side that includes an aliphatic polyester polyol, a non-polyester polyol, and a urethane catalyst. The A-side and the B-side are reacted at a volume ratio of 1:1 and formulated at an NCO/OH index within the range of 0.90 to 1.10. The polyurethane adhesive is solvent-free and is particularly suitable for adhering a polymeric membrane to a substrate.